Hanssen in 2001
|Born||Robert Philip Hanssen
April 18, 1944
Chicago, Illinois, U.S.
|Other names||Ramon Garcia, Jim Baker, G. Robertson, Graysuit, "B"|
|Occupation||Former FBI agent and spy for the Soviet Union and later the Russian Federation|
|Criminal charge|| (Espionage Act)and|
|Criminal penalty||Life imprisonment (without parole)|
|Criminal status||Incarcerated at ADX Florence|
|Spouse(s)||Bernadette "Bonnie" Wauck Hanssen|
Robert Philip Hanssen (born April 18, 1944) is a former US Federal Bureau of Investigation (FBI) agent who spied for Soviet and Russian intelligence services against the United States for 22 years from 1979 to 2001. He is currently serving 15 consecutive life sentences at ADX Florence, a federal supermax prison near Florence, Colorado.
Hanssen was arrested on February 18, 2001 at Foxstone Park near his home in Vienna, Virginia, and was charged with selling US secrets to the USSR and subsequently Russia for more than US$1.4 million in cash and diamonds over a 22-year period. On July 6, 2001, he pleaded guilty to 15 counts of espionage in the United States District Court for the Eastern District of Virginia. He was then sentenced to 15 life terms without the possibility of parole. His activities have been described by the US Department of Justice's Commission for the Review of FBI Security Programs as "possibly the worst intelligence disaster in U.S. history."
- 1 Early life
- 2 FBI career and first espionage activities (1976–1981)
- 3 FBI counterintelligence unit, further espionage activities (1985–1991)
- 4 Later FBI career, continued espionage activities (1992–2001)
- 5 Investigation and arrest
- 6 Guilty plea and imprisonment
- 7 Modus operandi
- 8 Personal life
- 9 In the media
- 10 Notes
- 11 References and further reading
- 12 External links
Hanssen was born in Chicago, Illinois, to a family of mixed Danish, Polish and German descent who lived in the Norwood Park community. His father Howard, a Chicago police officer, was emotionally abusive to Hanssen during his childhood. The elder Hanssen constantly disparaged his son and said that Robert would never make anything of his life.
Hanssen graduated from William Howard Taft High School in 1962 and went on to attend Knox College in Galesburg, Illinois, where he earned a bachelor's degree in chemistry in 1966. While at Knox, he took an interest in Russian through elective courses.
Hanssen applied for a cryptographer position in the NSA but was rebuffed due to budget setbacks. He enrolled in dental school at Northwestern University but switched his focus to business after 3 years. He received an MBA in accounting and information systems in 1971 and took a job with an accounting firm. He quit after 1 year and joined the Chicago Police Department as an internal affairs investigator, specializing in forensic accounting. In January 1976, he left the police department to join the FBI.
Hanssen met Bernadette "Bonnie" Wauck, a staunch Roman Catholic, while attending dental school at Northwestern. The couple married in 1968, and Hanssen converted from Lutheranism to his wife's Catholicism, becoming a fervent believer and being extensively involved in Opus Dei.
FBI career and first espionage activities (1976–1981)
Hanssen joined the FBI as a special agent on January 12, 1976 and was transferred to the Bureau's Gary, Indiana, field office. In 1978, Hanssen and his growing family (of three children and eventually six) moved to New York when the FBI transferred him to its field office there. The next year, Hanssen was moved into counter-intelligence and given the task of compiling a database of Soviet intelligence for the Bureau. It was then, in 1979, only three years after joining the FBI, that Hanssen began his career as a Soviet (and later a Russian) spy.
That year, Hanssen approached the GRU (the Soviet military intelligence agency) and offered his services. Hanssen never indicated any political or ideological motive for his activities, telling the FBI after he was caught that his only motivation was the money. During his first espionage cycle, Hanssen told the GRU a significant amount, including information on FBI bugging activities and Bureau lists of suspected Soviet intelligence agents. His most important leak of information was the betrayal of Dmitri Polyakov, code named TOPHAT. Polyakov was a CIA informant for more than 20 years before his retirement in 1980, and passed enormous amounts of information to American intelligence while he rose to the rank of General in the Soviet Army. For unknown reasons, the Soviets did not act on their intelligence about Polyakov until he was betrayed a second time by CIA mole Aldrich Ames in 1985. Polyakov was arrested in 1986 and executed in 1988. Ames was officially blamed for giving Polyakov's name to the Soviets, while Hanssen's attempt was not revealed until after his 2001 capture.
Hanssen was nearly exposed in 1981, when Bonnie Hanssen caught her husband in their basement writing a letter to the Soviets. Hanssen admitted to her that he had been giving information to the Soviets for monetary gain and that he had received US$30,000 as payment. However, Hanssen falsely claimed that he was only passing along false intelligence.
FBI counterintelligence unit, further espionage activities (1985–1991)
Hanssen was transferred to the Washington, D.C. office in 1981 and moved to the suburb of Vienna, Virginia. His new job in the FBI's budget office gave him access to information involving many different FBI activities. This included all the FBI activities related to wiretapping and electronic surveillance, which were Hanssen's responsibility. He became known in the Bureau as an expert on computers.
In 1984, Hanssen transferred to the Soviet analytical unit, which was directly responsible for studying, identifying, and capturing Soviet spies and intelligence operatives in the United States. Hanssen's section was in charge of evaluating Soviet agents who volunteered to give intelligence to the United States to determine whether they were genuine or double agents. In 1985, Hanssen was again transferred to the FBI's field office in New York, where he continued to work in counter-intelligence against the Soviets. It was after the transfer, while on a business trip back to Washington, that he resumed his career in espionage. This time, he became an operative for the KGB.
On October 1, 1985, he sent an anonymous letter to the KGB offering his services and asking for US$100,000 in cash. In the letter, Hanssen gave the names of three KGB agents in the United States secretly working for the FBI: Boris Yuzhin, Valery Martynov and Sergei Motorin. Unbeknown to Hanssen, all three had already been exposed earlier that year by another mole, CIA employee Aldrich Ames. Martynov and Motorin were executed, and Yuzhin was imprisoned for six years, and eventually immigrated to the United States. Since the FBI blamed Ames for the leak, Hanssen was not suspected nor investigated. The October 1 letter was the beginning of a long, active espionage period for Hanssen. He remained busy with KGB correspondence over the next several years.
In 1987, Hanssen was recalled yet again to Washington. He was given the task of making a study of all known and rumored penetrations of the FBI in order to find the man who had betrayed Martynov and Motorin. This meant that he was looking for himself. Hanssen ensured that he did not unmask himself with his study, but in addition, he turned over the entire study, including the list of all Soviets who had contacted the FBI about FBI moles, to the KGB in 1988. Also in 1987, Hanssen, according to a government report, "committed a serious security breach" by revealing secret information to a Soviet defector during a debriefing. The agents working underneath him reported this breach to a supervisor, but no action was taken.
In 1989, Hanssen handed over extensive information about American planning for Measurement and Signature Intelligence (MASINT), an umbrella term for intelligence collected by a wide array of electronic means, such as radar, underwater hydrophones for naval intelligence, spy satellites, and signal intercepts. When the Soviets began construction on a new embassy in 1977, the FBI dug a tunnel beneath the Soviet embassy, right under their decoding room. The FBI planned to use it for eavesdropping, but never did for fear of being caught. Hanssen disclosed this detailed information to the Soviets in September 1989 and received a US$55,000 payment the next month. On two occasions, Hanssen gave the Soviets a complete list of American double agents.
In 1989, Hanssen compromised the FBI investigation of Felix Bloch. Bloch was a State Department official who had served all over the world for more than 30 years when he came under suspicion in May 1989. Bloch was seen by French intelligence agents meeting a known KGB operative and giving him a black bag. Bloch was a stamp collector and tried claiming that the bag contained stamp albums. At some point after the meeting, Hanssen warned the KGB that Bloch was under investigation. The following month, the operative called Bloch and said that he could not see Bloch any more, specifically saying, "A contagious disease is suspected." The FBI believed that the call was a veiled warning. An investigation was launched into Bloch that dragged on for months. Felix Bloch maintained his innocence. The FBI was unable to produce any hard evidence, and as a result, Bloch was never charged with a crime, although the State Department later terminated Bloch's employment and denied his pension. The failure of the Bloch investigation, and the FBI's investigation of how the KGB found out they were investigating Bloch, drove the mole hunt that eventually led to the arrest of Hanssen.
In 1990, Hanssen's brother-in-law, Mark Wauck, who was also an FBI employee, recommended to the bureau that Hanssen be investigated for espionage; this was because Bonnie Hanssen's sister Jeanne Beglis had found a pile of cash sitting on a dresser in the Hanssens' house in 1990 and then told Wauck. Five years earlier in 1985, Bonnie had told her brother that her husband once talked about retiring in Poland, then part of the Eastern Bloc and under Soviet domination. Wauck also knew that the FBI was hunting for a mole and so spoke with his supervisor, who took no action.
Later FBI career, continued espionage activities (1992–2001)
When the Soviet Union collapsed in December 1991, Hanssen, possibly worried that he could be exposed during the ensuing political upheaval, broke off communications with his handlers that same month and was out of contact for a time. He resumed his spying activities in 1992, this time for the newly formed Russian Federation.
Hanssen made a very risky approach to the GRU, with whom he had not been in contact since his initial foray into espionage in 1979–1981. Hanssen, who in the past had always taken care to keep his face and his name hidden from the Russians, this time went in person to the Russian embassy and physically approached a GRU officer in the embassy's parking garage. Hanssen, carrying a package of documents, identified himself by his Soviet codename, "Ramon Garcia," and described himself as a "disaffected FBI agent" who was offering his services as a spy. The Russian officer, who evidently did not recognize Hanssen's codename, got into his car and drove off. The Russians then filed an official protest with the State Department, believing Hanssen to be a double agent. Despite having shown his face, disclosing his code name, and revealing his FBI affiliation, Hanssen escaped arrest when the Bureau's investigation into the incident did not advance.
Hanssen continued to take risks in 1993. That year, he hacked into the computer of a fellow FBI agent, Ray Mislock, printed out a classified document from Mislock's computer, and took the document to Mislock, saying, "You didn't believe me that the system was insecure." His superiors were not amused and launched an investigation. In the end, FBI officials believed Hanssen's cover story; Hanssen told them that he was merely demonstrating flaws in the FBI's security system. Mislock has since theorized that Hanssen probably went onto his computer to see if his superiors were investigating him for espionage, and invented the document story to cover his tracks.
In 1994, Hanssen expressed interest in a transfer to the new National Counterintelligence Center, which co-ordinated counter-intelligence activities. When a superior told him that he would have to take a lie detector test to join, Hanssen changed his mind. Three years later, convicted FBI mole Earl Edwin Pitts told the Bureau that he suspected Hanssen was dirty due to the Mislock incident. Pitts was the second FBI agent to mention Hanssen by name as a possible mole, but the FBI's hierarchy was still unconvinced. No action was taken.
Hanssen was sent in 1995 to the Office of Foreign Missions at the State Department as the senior FBI liaison, with the task of co-ordinating travel by foreign diplomats in the United States. On his weekly visits back to FBI headquarters he frequently visited Johnie Sullivan, Chief of the National Security Division's (NSD) Intelligence Information Services (IIS) Unit. Hanssen mostly wanted to chat about his interest in computer security technology and the new Intelink-FBI network that Sullivan's unit was building and installing throughout the Bureau's major field offices.
In 1997, IT personnel from the IIS Unit were sent to investigate Hanssen's FBI desktop computer following a reported failure. Sullivan ordered the computer impounded after it appeared to have been tampered with. A digital investigation by Sullivan and his IT staff found that an attempted hacking had taken place using a password cracking program installed by Hanssen, which caused a security alert and lockup. Following confirmation by the FBI CART Unit, Sullivan filed a report with Office of Professional Responsibility requesting further investigation of Hanssen's attempted penetration of the Bureau's high-security network operated by the National Security Division. Hanssen claimed all he wanted to do was connect a color printer to his computer, but needed the password cracker to bypass the administrative password. The FBI believed his story and Hanssen was let off with a warning never to do it again. However, Sullivan felt that Hanssen's story was grossly inconsistent with the evidence and refused to withdraw the security violation report. The report was first ridiculed and later ignored by the NSD Security Countermeasures Unit.
During the same time period, Hanssen would go into the FBI's internal computer case record and search to see if he was under investigation. He was indiscreet enough to type his own name into FBI search engines (which were logged, leaving a trail that could be investigated). Finding nothing, he decided to resume his spy career after eight years without contact with the Russians. He established contact with the SVR (the successor to the Soviet-era KGB) in the fall of 1999. He continued to perform highly incriminating searches of FBI files for his own name and address. In November 2000, he sent his last letter to the Russians.
Investigation and arrest
The existence of two moles working simultaneously—Aldrich Ames at CIA and Hanssen at the FBI—complicated counterintelligence efforts in the 1990s. Ames was arrested in 1994; his capture explained many of the asset losses American intelligence suffered in the 1980s, including the arrest and execution of Martynov and Motorin. However, two cases stuck out and remained unsolved. For one, the Felix Bloch case remained a mystery. Ames had been stationed in Rome at the time of the Bloch investigation, and as such could not have been responsible for that breach. Additionally, there was no explanation for the mysterious telephone warning. Authorities were satisfied that Ames had no knowledge of the case, as he did not work for the FBI and is not thought to have had access to the case files. In addition, the exposure of the tunnel under the Russian embassy in Washington was a second intelligence failure that could not be blamed on Ames (for the same reason, that it was an FBI operation).
In 1994, after the arrest of Ames, the FBI and CIA formed a joint mole-hunting team to find the suspected second intelligence leak. They formed a list of all agents known to have access to cases that were compromised. The FBI's codename for the suspected spy was "Graysuit." Some promising suspects were cleared, and the mole hunt found other penetrations such as CIA officer Harold James Nicholson. But Hanssen escaped being noticed.
By 1998, using FBI criminal profiling techniques, the hunters had zeroed in on an innocent man: Brian Kelley, a CIA operative. Kelley was the agent who identified the very KGB agent who met with and took the bag from Felix Bloch, but now found himself suspected to be the leak who had blown the case to the Soviets. The CIA and FBI searched his house, tapped his phone, and put him under round the clock surveillance, following him and his family everywhere. In November 1998, they had a man with a foreign accent come to Kelley's door, warn him that the FBI knew he was a spy, and tell him to show up at a Metro station the next day in order to escape. Kelley instead reported the incident to the FBI. In 1999, the FBI even called Kelley in for questioning and directly accused him of being a Russian spy. Over the next two days the Bureau interrogated his ex-wife, two sisters, and three children. Kelley and his family denied everything, and his CIA career suffered permanent damage. He was eventually placed on administrative leave, where he remained, falsely accused, for nearly two years, until after Hanssen was arrested.
Out of frustration of interrogating Kelley for a year, and having failed to either bring a case against him or find another suspect, the FBI decided on a new tactic – buying the mole's identity. They searched for possible candidates to buy off and found one – a Russian businessman and former KGB agent whose identity remains classified to this day. An American company cooperated by inviting him to the United States for a business meeting. After his arrival in New York City, the FBI offered him a large sum of money if he would give the name of the mole. The Russian responded that he did not know the name, but that he could get the actual KGB/SVR file regarding the mole. He managed to steal the file from SVR headquarters. The file covered the mole's correspondence with the KGB from 1985 to 1991. The FBI agreed to pay US$7 million for the file, and set up the KGB officer and his family with new identities in the United States. In November 2000, the FBI finally obtained the file, consisting of a package the size of "a medium-sized suitcase." Among the host of documents and computer disks was an audiotape of a July 21, 1986, conversation between the mole and a KGB agent.
When the FBI listened to the tape, they expected to hear the voice of Kelley, still the prime suspect. However, the voice on the recording was definitely not Kelley. When FBI agent Michael Waguespack heard the tape he recognized the voice as familiar, but could not remember who it was. Rifling through the rest of the file, they found notes of the mole using a quote from General George S. Patton about "the purple-pissing Japanese." FBI analyst Bob King remembered Robert Hanssen using that same quote. Waguespack listened to the tape again and recognized it as the voice of Robert Hanssen.
The FBI finally had its man. Once the name was known, everything else fell into place – locations, cases, dates, references to Chicago, etc. All these factors were a perfect match with Hanssen's activities during the time period. Also in the file was one of Hanssen's original packages for the KGB, complete with a trash bag with two fingerprints on it. The fingerprints were analyzed and proved to be Hanssen's. The weight of evidence against Hanssen was overwhelming and conclusive.
The FBI placed Hanssen under round-the-clock surveillance and soon discovered that he was again in contact with the Russians. In order to bring him back to FBI headquarters, where he could be closely monitored and kept away from sensitive data, they promoted him in December and gave him a new job supervising FBI computer security. In January, Hanssen was given an office and an assistant, Eric O'Neill, who in reality was a young FBI employee who had been assigned to watch Hanssen. O'Neill ascertained that Hanssen was using a Palm III PDA to store his information. When O'Neill was able to briefly obtain Hanssen's PDA and have agents download and decode its encrypted contents, the FBI had its "smoking gun."
During his final days with the FBI, Hanssen began to suspect that something was wrong: in early February he asked a friend of his at a computer technology company for a job. Hanssen also believed he was hearing noises on his car radio which indicated that his car was bugged, although the FBI was later unable to reproduce the noises Hanssen claimed to have heard. In the last letter he ever wrote to the Russians, which was picked up by the FBI when he was arrested, Hanssen said that he had been promoted to a "do-nothing job ... outside of regular access to information," and that, "Something has aroused the sleeping tiger."
However, his suspicions did not stop him from making one more dead drop. After dropping off a friend at the airport on February 18, 2001, Hanssen drove to Virginia's Foxstone Park. He placed a white piece of tape on a park sign, which was a signal to his Russian contacts that there was information at the dead drop site. He then followed his usual routine, taking a package which consisted of a sealed garbage bag of classified material and taping it to the bottom side of a wooden footbridge over a creek. When FBI agents spotted this highly incriminating act they rushed in to catch Hanssen red-handed and arrest him. Upon being arrested, Hanssen realized his espionage days against the FBI were over and asked "What took you so long?" The FBI waited two more days to see if any of Hanssen's SVR handlers would show up at the Foxstone Park dead drop site. When they failed to appear, the Justice Department announced the arrest on February 20.
Guilty plea and imprisonment
With the representation of Washington lawyer Plato Cacheris, Hanssen negotiated a plea bargain that enabled him to escape the death penalty in exchange for co-operating with authorities. On July 6, 2001, he pleaded guilty to fifteen counts of espionage in the United States District Court for the Eastern District of Virginia. On May 10, 2002 he was sentenced to fifteen consecutive sentences of life in prison without the possibility of parole (parole in federal sentencing was abolished by Congress in the 1980s). "I apologize for my behavior. I am shamed by it," Hanssen told U.S. District Judge Claude Hilton. "I have opened the door for calumny against my totally innocent wife and children. I have hurt so many deeply." His wife, along with their six children, received the survivor's part of Hanssen's pension, $38,000 per year.
Hanssen is Federal Bureau of Prisons prisoner #48551-083. He is serving his sentence at the ADX Florence, a federal supermax prison near Florence, Colorado in solitary confinement 23 hours a day.
Hanssen never told the KGB or GRU his identity and refused to meet them personally, with the exception of the abortive 1993 contact in the Russian embassy garage. The FBI believes the Russians never knew the name of their source. He went by the alias "Ramon" or "Ramon Garcia" when corresponding with the Soviets. He passed intelligence and received payments through an old-fashioned dead drop system where Hanssen and his KGB handlers would leave packages in public places and place unobtrusive but visible marks in the area to let the other party know that a package was waiting.
In the words of David Major, one of his superiors at the FBI, Hanssen was "diabolically brilliant." He refused to use the dead drop sites that his handler, Victor Cherkashin, suggested and instead picked his own. He also designated a code to be used when dates were exchanged. Six was to be added to the month, day and time of a designated drop time, so that, for example, a drop scheduled for January 6 at 1 pm would be written as July 12 at 7 pm.
Despite these efforts at caution and security, he could at times be reckless. He once said in a letter to the KGB that it should emulate the management style of Mayor of Chicago Richard J. Daley – a comment that easily could have led an investigator to look at people from Chicago. He took the risk of recommending to his handlers that they try to recruit his closest friend, a colonel in the Army. In an early letter to Cherkashin, he claims, "As far as the funds are concerned, I have little need or utility for more than the $100,000."
According to USA Today, those who knew the Hanssens described them as a close family. They attended Mass weekly and were very active in Opus Dei. Hanssen's three sons attended The Heights School in Potomac, Maryland, an all-boys preparatory school. His daughters attended Oakcrest School for Girls, an independent Roman Catholic school. Both schools are associated with Opus Dei. Hanssen's wife, Bonnie, teaches Theology at Oakcrest.
The priest at Oakcrest said that Hanssen had regularly attended a 6:30 a.m. daily mass for more than a decade. Opus Dei member Father C. John McCloskey III said Hanssen also occasionally attended the daily noontime Mass at the Catholic Information Center in downtown Washington, D.C. After going to prison, Hanssen claimed he periodically admitted his espionage to priests in confession. He urged fellow Catholics in the Bureau to attend Mass more often and denounced the Russians, even though he was spying for them, as "godless."
However, at Hanssen's suggestion, and without the knowledge of his wife, a friend named Jack Horschauer, a retired army officer, would sometimes watch the Hanssens having sex through a bedroom window. Hanssen then began to secretly videotape his sexual encounters and shared the videotapes with his friend. Later, he hid a video camera in the bedroom that was connected via closed-circuit television line so that his friend could observe the Hanssens from his guest bedroom. He also explicitly described the sexual details of his marriage on Internet chat rooms, giving information sufficient for those who knew them to recognize the couple.
Hanssen frequently visited D.C. strip clubs, and spent a great deal of time with a Washington, D.C. stripper named Priscilla Sue Galey. She went to Hong Kong with Hanssen on a trip and on a visit to the FBI training facility in Quantico, Virginia. He gave her money, jewels and a used Mercedes, but cut off contact with her before his arrest, when she fell into drug abuse and prostitution. Galey claims that although she offered to sleep with him, Hanssen declined, saying that he was trying to convert her to Catholicism.
In the media
The story is mentioned in Ronald Kessler's book The Secrets of the FBI, both in Chapter 15, "Catching Hanssen," and Chapter 16, "Breach."
The 2007 documentary Superspy: The Man Who Betrayed the West describes the hunt to trap Robert Hanssen. Hanssen also was the subject of a 2002 made-for-television movie, Master Spy: The Robert Hanssen Story, written by Norman Mailer and starring William Hurt as Hanssen. Robert Hanssen's jailers allowed him to watch this movie but Hanssen was so angered by the film that he turned it off.
The 2002 book written by David Wise and titled Spy: The Inside Story of How FBI's Robert Hanssen Betrayed America covers the case in detail.
Hanssen is reviewed on season 2, episode 14 of Mysteries at the Museum. Actual footage of his arrest by FBI agents is included. His story is the last segment of 4 included in this episode.
- "USA v. Robert Philip Hanssen: Affidavit in Support of Criminal Complaint, Arrest Warrant and Search Warrant". fas.org. Retrieved March 19, 2011.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Adrian Havill, crimelibrary.com. His fate is sealed. Retrieved September 10, 2007
- Wise 2003, p. 8
- Transcript of Hanssen Guilty Plea, July 6, 2001. Retrieved February 22, 2007.
- United States Department of Justice Thompson Statement Regarding Hanssen Guilty Plea July 6, 2001. Retrieved February 22, 2007.
- "A Review of FBI Security Programs (Webster Report) (March 2002). Commission for Review of FBI Security Programs, United States Department of Justice.
- Havill, Adrian. "The Spawning of A Spy." Robert Philip Hanssen: The Spy who Stayed out in the Cold. Crime Library. Retrieved on April 11, 2012.
- U.S. Department of Justice "A Review of the FBI's Performance in Deterring, Detecting, and Investigating the Espionage Activities of Robert Philip Hanssen", (Archive) August 14, 2003
- Wise 2003, p. 10
- Adrian Havill, Court TV, Robert Philip Hanssen: The Spy who Stayed out in The Cold. Retrieved February 6, 2007.
- Dolores Flaherty, Chicago Sunday-Times Hanssen, the spy with two faces 2003 November 23. Retrieved February 6, 2007
- Spy's Wife Speaks, After Taking a Lie Test by James Risin, NY Times, 16 May 2002; http://www.nytimes.com/2002/05/16/us/spy-s-wife-speaks-after-taking-a-lie-test.html
- Wise 2003, pp. 18–19
- Wise 2003, p. 21
- Wise 2003, pp. 21–24
- Wise 2003, pp. 28–33
- Wise 2003, pp. 37–38
- Wise 2003, pp. 50–51
- Wise 2003, pp. 56–57
- Wise 2003, pp. 3–4, 67–68, 82–83
- Cherkashin & Feifer 2005, p. 246
- Wise 2003, p. 95
- Wise 2003, pp. 98–110
- Wise 2003, p. 159
- Wise 2003, pp. 111–119
- Wise 2003, pp. 120–128.
- Wise 2003, p. 141
- Wise 2003, p. 160
- Wise 2003, pp. 160–161
- Wise 2003, pp. 176–177
- Wise 2003, p. 181
- Wise 2003, p. 184
- Wise 2003, p. 188
- Wise 2003, pp. 190–192
- CBS A Not-So-Secret Tunnel March 5, 2001. Retrieved October 31, 2010.
- Wise 2003, p. 170
- Wise 2003, p. 173
- Wise 2003, pp. 205–213
- Wise 2003, p. 140
- Wise 2003, pp. 218–228
- Cherkashin & Feifer 2005, p. 251
- Schiller 260
- Fresh Air Eric O'Neill and Billy Ray Discuss 'Breach' 2007 January 31
- ABC 20/20 Report on Eric O'Neill December 27, 2002. Retrieved January 31, 2007
- CNN CNN, Anderson Cooper 360 Degrees October 1, 2003. Retrieved January 31, 2007.
- Wise 2003, pp. 236–239
- Wise 2003, pp. 7–8
- Wise 2003, pp. 246–247
- "FBI Spy Robert Hanssen Gets Life Sentence". FoxNews.com. May 10, 2002.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Laura Sullivan, National Public Radio Timeline: Solitary Confinement in US Prisons July 26, 2006. Retrieved February 15, 2007.
- "Robert Philip Hanssen." Federal Bureau of Prisons. Retrieved on January 5, 2010.
- Wise 2003, p. 75
- Wise 2003, p. 165
- Wise 2003, p. 54
- Cherkashin & Feifer 2005, p. 230
- Wise 2003, p. 137
- Wise 2003, p. 138
- Cherkashin & Feifer 2005, p. 236
- CI Centre  Retrieved February 20, 2007
-  Faculty and Staff Directory for Oakcrest School for Girls
- Shannon & Blackman 2002, p. 86
- Wise 2003, pp. 85–89
- Wise 2003, pp. 252–253
- CNN, American Morning with Paula Zahn Look at FBI Spy Robert Hannsen January 8, 2002. Retrieved January 31, 2007.
- Wise 2003, p. 149
- Ex-stripper describes her time with accused spy CNN. Retrieved December 11, 2006.
- Breach IMDB Movie Database. Retrieved 6 March 2015.
- Wise 2003, p. 302
- Brown, Dan (March 31, 2009). The Da Vinci Code. Chapter 5. p. 36. ISBN 0307474275.CS1 maint: location (link)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- "Amazon Bookpage".<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
References and further reading
- Cherkashin, Victor; Feifer, Gregory (2005), Spy Handler: Memoir of a KGB Officer – The True Story of the Man Who Recruited Robert Hanssen and Aldrich Ames, Basic Books, ISBN 0-465-00969-7<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Havill, Adrian (2002), The Spy Who Stayed Out in the Cold: The Secret Life of FBI Double Agent Robert Hanssen, St. Martin's Paperbacks, ISBN 0-312-98629-7<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Schiller, Lawrence (2004), Into The Mirror: The Life Of Master Spy Robert P. Hanssen, Diane Pub Co., ISBN 0-7567-7435-7<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Shannon, Elaine; Blackman, Ann (2002), The Spy Next Door: The Extraordinary Secret Life of Robert Philip Hanssen, the Most Damaging FBI Agent in U.S. History, Little, Brown and Co., ISBN 0-316-71821-1<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Vise, David A. (2001), The Bureau and the Mole: The Unmasking of Robert Philip Hanssen, the Most Dangerous Double Agent in FBI History, Grove Publishers, ISBN 0-641-57998-5<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Wise, David (2003), Spy: The Inside Story of How the FBI's Robert Hanssen Betrayed America, Random House Publishers, ISBN 0-375-75894-1<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Fine, Glenn A. (2003), A Review of the FBI's Performance in Deterring, Detecting, and Investigating the Espionage Activities of Robert Philip Hanssen, U.S. Department of Justice, Office of the Inspector General<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>; PDF Version (Archive)
- Vise, David A. (January 6, 2002), "From Russia With Love...", The Washington Post<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Lynch, Christopher (2010), The C. I. Desk: FBI and CIA Counterintelligence As Seen From My Cubicle, Dog Ear Publishing, ISBN 978-1-60844-739-8<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
|Wikimedia Commons has media related to Robert Hanssen.|
- FBI application for arrest warrant for Hanssen (Archive)
- USA Today: FBI portrays Robert Hanssen's double life
- The secret PROMIS software Robert Hanssen leaked to Russia
- Eric O'Neill and Billy Ray Discuss 'Breach' on Fresh Air
- USA vs. Robert Hanssen, The Smoking Gun
- Master Spy: The Robert Hanssen Story – CBS TV Movie
- ROBERT PHILIP HANSSEN: THE SPY WHO STAYED OUT IN THE COLD
- To Catch A Spy: Probe To Unmask Hanssen Almost Ruined Kelley