Karl Koecher

{{Short description|Czechoslovak spy}}

{{Infobox spy

| honorific_prefix =

| name = Karl Koecher

| honorific_suffix =

| nickname =

| image =File:Ronald Kessler and Karl and Hana Koecher (cropped).jpg

| caption =Koecher, Prague, 1987

| allegiance = {{flagicon image|Flag of the Czech Republic.svg}} Czechoslovakia
{{flagicon image|Flag of the Soviet Union.svg}} Soviet Union

| service =

| serviceyears = 1962–1983

| rank =

| operation =

| award =

| codename1 = Pedro, Tulian, Rino{{cite news | url=https://www.theguardian.com/world/2016/jun/30/how-a-czech-super-spy-infiltrated-cia-karel-koecher | title=How a Czech 'super-spy' infiltrated CIA | work=The Guardian | date=30 June 2016 | access-date=1 July 2016 | author=Cunningham, Benjamin}}

| other =

| birth_name =

| birth_date = {{Birth date and age|1934|09|21}}

| birth_place = Bratislava, Czechoslovakia

| death_date =

| death_place =

| death_cause =

| buried =

| height =

| nationality =

| religion =

| residence =

| parents =

| spouse = Hana Koecher

| children =

| occupation =

| alma_mater = Charles University {{small|(M.S., 1957)}}
Indiana University
Columbia University {{small|(Ph.D., 1971)}} {{efn|Zbigniew Brzezinski was one of his professors.{{cite news |url=https://www.washingtonpost.com/archive/opinions/1988/04/17/moscows-mole-in-the-cia/a976fac3-622a-475d-8c87-46b6170b1f4e/ |title=Moscow's Mole in the CIA |newspaper=Washington Post |last=Kessler |first=Ronald |author-link=Ronald Kessler |date=29 October 1988 |access-date=20 February 2020}}}}

| signature =

|agency=StB
KGB}}

Karl František Koecher (born 21 September 1934 in Bratislava) is a Czech mole known to have penetrated the CIA during the Cold War.{{cite book |last1=Sevela |first1=Vladimir |title=Cesky Krtek v CIA |date=2015 |publisher=Prostor |location=Prague |isbn=978-80-7260-320-6 |pages=35–38}}

Early life

Born in Bratislava, Czechoslovakia, his father was a Viennese-born Czech and his mother Irena, a Slovak Jew. As the son of an Anglophile, Koecher gained his language skills from an early age attending an English grammar school and later French lyceum before the war. Prior to his entry to university, his anti-state activities in his teen years attracted the attention of the Czechoslovakia State Security after the Communists took over in Czechoslovakia in 1948.

As remembered by some of his classmates, from early age he showed strong analytical capabilities, high intelligence and individualistic nature. Due to his unlikeable character, in later years, his former classmates would not invite him on annual class meetings. He studied physics and mathematics at Charles University as well as film at the Academy of Performing Arts.

After university he tried a few jobs including a teacher, a reporter for state television, and a radio comedy writer. He became a radio comedy writer and was allegedly frequently scrutinized by the Communist security forces for his satire that mocked the regime (this turned out to be a pre-planned "cover story").{{Citation needed|date=July 2016}} He joined the Communist Party in 1960,{{cite book|title=Undercover Washington: where famous spies lived, worked, and loved|author=Pamela Kessler|year=2005|publisher=Capital Books|isbn=1-931868-97-2|url=https://books.google.com/books?id=s-NBS1bIICkC&pg=PA27|page=27}} and the Czechoslovak intelligence service in 1962 using the codename Pedro.{{cite news |url=http://www.time.com/time/magazine/article/0,9171,955355,00.html |title=Picking Up the Czech |date=10 December 1984 |work=Time Magazine|archive-date=13 July 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100713084428/http://www.time.com/time/magazine/article/0,9171,955355,00.html}}{{cite news |url=http://freeglobe.parlamentnilisty.cz/Articles/1504-svedectvi-spiona-ucinit-havla-znameho-a-pak-prezidentem-tuto-operaci-ridil-dustojnik-cia-pavel-tigrid.aspx |title=Svědectví špióna: Učinit Havla známého a pak prezidentem. Tuto operaci řídil důstojník CIA Pavel Tigrid |trans-title=Spy testimony: Make Havel acquainted and then president. This operation was led by CIA officer Pavel Tigrid |work=freeglobe.cz |last=redakce |date=13 February 2012 |access-date=9 March 2020 |archive-date=8 July 2017 |archive-url=https://web.archive.org/web/20170708195538/http://freeglobe.parlamentnilisty.cz/Articles/1504-svedectvi-spiona-ucinit-havla-znameho-a-pak-prezidentem-tuto-operaci-ridil-dustojnik-cia-pavel-tigrid.aspx |language=cs}}

Czechoslovakia State Security (StB) career

Koecher claimed that constant harassment from the Czechoslovakia State Security (StB) due to his history of anti-state and anti-social behavior, ruined his different careers and in order to end the harassment, he decided to join the StB. With the help of a friend within the StB and his language skills, he was recruited into the intelligence service.

Koecher's first two years were devoted to training and counter-intelligence work against West Germans in Prague.

Koecher was selected to become a mole in the West working with the first directorate in the Stb because of his English language skills.{{cite news |url=https://www.theguardian.com/us-news/2018/oct/29/czechoslovakia-spied-on-trump-to-exploit-ties-to-highest-echelons-of-us-power |title='A very different world' - inside the Czech spying operation on Trump. Exclusive: files reveal Trump was the target of an extensive spying operation in the late 1980s by the country's intelligence service, with 'friends' from the KGB |work=The Guardian |last=Harding |first=Luke |author-link=Luke Harding |date=29 October 2018 |access-date=20 February 2020}}

;Immigration to the United States

In 1965 he and his wife, Hana Koecher (the daughter of a Communist Party official), seemingly emigrated to the United States via Austria posing as defecting dissidents.{{cite news|url=https://news.google.com/newspapers?id=TN1VAAAAIBAJ&pg=3984%2C8088787|work=Eugene Register-Guard|date=30 November 1984|title=Lawyer calls accused spy double agent}}

His language skills and status as a defector aided Koecher in gaining employment at Radio Free Europe and a year long fellowship at Indiana University.

He returned to New York in 1967 and he gained a doctorate in philosophy from Columbia University,{{cite news|url=https://news.google.com/newspapers?id=eK9OAAAAIBAJ&pg=5463%2C5922526|work=Prescott Daily Courier|date=29 November 1984|page=2A|title=Czech spy to plead innocent|agency=UPI|place=New York}} and became an American citizen in 1971.{{Cite web|url=http://www.dhra.mil/perserec/espionagecases/1984.htm|title=ALERT|website=www.dhra.mil|access-date=2016-06-18|archive-url=https://web.archive.org/web/20160809020851/http://www.dhra.mil/perserec/espionagecases/1984.htm|archive-date=2016-08-09|url-status=dead}}

;CIA work

With the purge of his superiors at the StB during the aftermath of the 1968 Soviet Union led invasion of Czechoslovakia, he found himself out of touch with the service and approached the FBI instead in an attempt to defect and use his knowledge against the Soviets but they were not interested.

His supply of information to the StB dwindled from 1969 until 1971, but he continued to integrate himself in American society.

Taking a CIA prescreening employment exam in November 1972, he passed and was employed. After several years as a sleeper he was hired by the CIA as a translator/analyst in 1973 due to his fake dissident credentials and skills in a number of Eastern European languages. He was given high level security clearance and given the job of translating and analyzing documents handed over by CIA agents and transcripts of wiretaps and bugs.

He quickly became one of the USSR's best sources of information, allowing them to mount an effective defense against CIA covert actions. He translated documents from a key CIA asset in Moscow, Ogorodnik. According to Martha D. Peterson, a retired CIA officer, Koecher is believed to have betrayed Aleksandr Dmitrievich Ogorodnik, a Soviet diplomat who spied for the CIA.{{citation|title=Of Moles and Molehunters: A Review of Counterintelligence Literature, 1977-92|page=58|publisher=The Center for the Study of Intelligence |author=Cleveland C. Cram|date=October 1993|url=https://www.cia.gov/library/center-for-the-study-of-intelligence/csi-publications/books-and-monographs/U-Oct%20%201993-%20Of%20Moles%20-%20Molehunters%20-%20A%20Review%20of%20Counterintelligence%20Literature-%201977-92%20-v2.pdf|archive-url=https://web.archive.org/web/20111224044232/https://www.cia.gov/library/center-for-the-study-of-intelligence/csi-publications/books-and-monographs/U-Oct%20%201993-%20Of%20Moles%20-%20Molehunters%20-%20A%20Review%20of%20Counterintelligence%20Literature-%201977-92%20-v2.pdf|url-status=dead|archive-date=December 24, 2011}}{{cite web |url=https://intelnews.org/2012/04/16/01-970/ |title=Ex-CIA officer sheds light on 1977 spy arrests in Moscow |work=intelnews.org |last=Fitsanakis |first=Joseph |date=16 April 2012 |access-date=9 March 2020}}{{efn|Ogorodnik's CIA case officer, Aldrich Ames, had given Ogorodnik the codename Trigon.}}

;KGB death threat and CIA retirement

In September 1976, however, Koecher was summoned back to Prague to a meeting with KGB head of counter-intelligence, Oleg Kalugin. Kalugin claims that after interrogating Koecher, he discovered that Koecher was in fact a triple agent and that his information could not be trusted.. According to Koecher, the StB then ordered Koecher to resign from the CIA or face death.

After seven days of interrogation, Koecher returned to New York and retired, leaving the CIA for a post in academia teaching philosophy.

; Reactivation

By 1982, Koecher was rehabilitated by the KGB after Kalugin was demoted from chief of foreign counterintelligence and Koecher's past intelligence had been reassessed. In the 1980s, Koecher was one of a number of agents reactivated, when he was approached by the StB intelligence officer Jan Fila, operating out of the UN, in New York.{{efn|Many believe that Fila was working for the United States.}} He returned to work part-time for the CIA. Although the FBI asserts that they had been monitoring and surveilling Koecher and his wife from the early 1980s, it was at least three years before he was arrested.

To this day, neither the FBI nor the CIA will reveal what alerted them to Koecher's treachery. Koecher and other KGB officials claim it was Kalugin.{{Cite web|url=http://www.columbia.edu/~js322/nyl/1999/diana/19990730d.html|title=Newyorske listy|website=www.columbia.edu|access-date=2016-06-18|archive-date=2016-06-11|archive-url=https://web.archive.org/web/20160611183636/http://www.columbia.edu/~js322/nyl/1999/diana/19990730d.html|url-status=dead}} Another suggestion by a CIA historian, is that it was the StB intelligence officer, Jan Fila, who betrayed him with the latter disappearing in December 1989, a month after the Czechoslovakian Velvet Revolution.

Apprehension

The FBI apprehended Koecher on 27 November 1984, outside New York City's Barbizon Plaza Hotel, and brought him and, soon afterwards, his wife Hana in for several days of questioning. Finally, Koecher agreed to become a triple agent working for the Americans, provided that they agreed to grant him immunity from prosecution. This was done and Koecher attempted to convince the FBI that he was cooperating.

However, it was then decided that Koecher was not reliable enough to be a triple agent and was likely to defect and return to Czechoslovakia.{{Citation needed|date=June 2011}} On November 27, 1984, the day after the couple sold their apartment{{cite news|url=https://news.google.com/newspapers?id=YOsdAAAAIBAJ&pg=7127%2C9282485|work=The Pittsburgh Press|date=29 November 1984|title=Wife of suspected spy not charged|page=A15}} and hours before they were scheduled to fly to Switzerland, Koecher and his wife were arrested in New York City. Koecher was held on espionage charges and Hana Koecher as a material witness. The arrest of the two agents was released to the media. U.S. Attorney Rudolph Giuliani led the case. The case on his wife, Hana, a purported diamond merchant but actually a courier for the StB from 1974 to 1983, had been bungled and would not result in a conviction, so the prosecutors allowed her to gain immunity in return for information against her husband Karl Koecher.

It soon emerged that the FBI had badly blundered. Koecher's confession was given only after his interrogators promised him immunity as a ruse, and was thus invalid.{{cite news|work=The Day (New London)|date=13 January 1985|title=Accused spy couple awaiting trial|agency=N.Y. Times News Service|page=D-10|url=https://news.google.com/newspapers?id=SjlSAAAAIBAJ&pg=1350,2437471}}{{cite book|title=Confessions of a spy:the real story of Aldrich Ames|author=Pete Earley|publisher=Putnam Adult|isbn=0-399-14188-X|year=1997|page=[https://archive.org/details/confessionsofspy00earl/page/73 73]|quote=his statement was inadmissible in court because the two FBI agents and the CIA officer who had interrogated him made promises that they never intended to keep.|url=https://archive.org/details/confessionsofspy00earl/page/73}} His wife had been denied access to a lawyer despite frequent requests for one, which reportedly caused Justice Department officials to refuse to charge her.{{cite news|url=https://news.google.com/newspapers?id=LT8dAAAAIBAJ&pg=1321%2C4417569|work=Anchorage Daily News|date=8 February 1986|title=U.S. includes Czech couple in spy swap|author=Ronald Ostrow (Los Angeles Times)|page=a-8}} She refused to testify against Karl, asserting spousal privilege, though prosecutors argued this did not apply given the two had been partners in crime. With little concrete evidence, it appeared that Koecher had a good chance of being acquitted. The issue of whether or not Hana Koecher could be compelled to testify against her husband went before the US Supreme Court but the fact that both spouses were returned to Czechoslovakia in a prisoner exchange before the court's opinion was published rendered the case moot.{{Cite web|url=https://www.courtlistener.com/opinion/111601/united-states-v-hana-koecher/ |title=United States v. Hana Koecher, 475 U.S. 133 |date=25 February 1986}} According to Koecher, Rudy Giuliani, as a prosecutor for the Southern District of New York, had bungled the case and was unable to gain enough evidence to convict Koecher after Koecher's arrest and instead offered immunity to Koecher in exchange for more information.{{Cite web|url=http://www.radio.cz/fr/rubrique/special/koecher-espion-tchecoslovaque-a-la-cia-echange-par-les-sovietiques-contre-sharansky-2e-partie|title=Radio Prague - Köcher, espion tchécoslovaque à la CIA, échangé par les Soviétiques contre Sharansky (2e partie)|trans-title=Köcher, Czechoslovakian spy at the CIA, exchanged by the Soviets for Sharansky (part 2)|language=fr|website=www.radio.cz|last=Rosenzweig|first=Alexis|date=15 August 2008|access-date=18 June 2016}}

Koecher was the victim of an attempted stabbing by an unnamed inmate while in prison. The inmate supposedly lunged at Koecher with a pair of scissors in an attack Koecher said was foiled by a Hells Angels member, Sandy Alexander. Koecher claims the inmate was moved to another prison, and could not be located years later, which he says is proof of an attempt by US intelligence agencies to assassinate him.

Koecher, worrying about his own safety, sent through his lawyer and his spouse's father, a request to the KGB chairman that he be part of a prisoner exchange with the Soviets. KGB chairman Kryuchkov agreed, and so did the prosecutor's office, concerned about the embarrassing chance of an acquittal.{{efn|According to Koecher, the United States prosecutor for the Southern District of New York, Rudy Giuliani, who had ambitions to become a mayor of New York City, did not want an acquittal because it would hurt Giuliani politically.}} Koecher pleaded guilty on charges of conspiracy to commit espionage for Czechoslovakia,{{cite news|url=http://articles.philly.com/1986-02-11/news/26087097_1_infiltrator-czech-agents-hana-koecher|archive-url=https://web.archive.org/web/20110811211859/http://articles.philly.com/1986-02-11/news/26087097_1_infiltrator-czech-agents-hana-koecher|url-status=dead|archive-date=August 11, 2011|title=Czech Infiltrator Part Of Planned Spy Swap, A Justice Official Says|date=11 February 1986|author=Aaron Epstein|work=Philadelphia Inquirer}} and was sentenced to life in prison, which was reduced to time served provided he left the US and never returned.{{Cite web|url=http://www.afio.com/sections/wins/2010/2010-27.htm|title=AFIO Weekly Intelligence Notes|website=www.afio.com|access-date=2016-06-18}} On February 11, 1986, Koecher and his wife were part of a nine-person exchange at Glienicke Bridge in Berlin, of which the most prominent member was noted dissident Anatoly Shcharansky.{{cite news|title=East, West exchange spies, Shcharansky |work=Houston Chronicle |date=11 February 1986 |url=http://www.chron.com/CDA/archives/archive.mpl/1986_218497/east-west-exchange-spies-shcharansky.html |archive-url=https://web.archive.org/web/20121021121954/http://www.chron.com/CDA/archives/archive.mpl/1986_218497/east-west-exchange-spies-shcharansky.html |archive-date= 21 October 2012 |url-status=dead }}

Return

File:Ronald Kessler and Karl and Hana Koecher.jpg, Prague 1987]]

Koecher returned to Czechoslovakia to a hero's welcome and was given a house and a Volvo car as a reward for his services.{{cite news|url=http://voices.washingtonpost.com/spy-talk/2010/07/past_russian_spies_have_found.html|title=Past Russian spies have found post-swap life gets a bit sticky|author=Jeff Stein|date=8 July 2010|newspaper=The Washington Post|archive-date=14 October 2012 |archive-url=https://web.archive.org/web/20121014234006/http://voices.washingtonpost.com/spy-talk/2010/07/past_russian_spies_have_found.html}} He was also given a job at the Prague Institute for Economic Forecasting,{{citation|url=http://www.ce-review.org/99/6/culik6.html|title=Princess Diana, Al Fayed, the CIA and a Czech Spook|author=Jan Culik|date=2 August 1999|work=Central Europe Review|access-date=11 May 2006|archive-url=https://web.archive.org/web/20070811002436/http://www.ce-review.org/99/6/culik6.html|archive-date=11 August 2007|url-status=usurped}} where many future politicians worked; Václav Klaus and Miloš Zeman, the future Czech presidents, were among them. Some U.S. journalists stated they had seen Koecher issuing orders at the Laterna Magika theatre during the early days of the Velvet Revolution (1989). Koecher denied any involvement in the Velvet Revolution, saying that journalists must have mixed him up with the then unknown Václav Klaus, who had a similar appearance.{{cite news |url=http://www.ceskatelevize.cz/vysilani/15.06.2007/207562222000024-22:00-1-uvolnete-se-prosim-vendula-svobodova-jan-mazoch-karel-kocher.html |title=Uvolněte se, prosím |trans-title=Calm down, please |work=Česká televize: Uvolněte se, prosím |location=Ponec Theater, Prague |last=Kraus |first=Jan |author-link=Jan Kraus (actor) |date=15 June 2007 |access-date=9 March 2020}}

The fall of communism has seen Koecher fall from prominence, with the exception of his alleged involvement in a scheme run by Oswald LeWinter,{{efn|During their United States incarceration in the 1980s, Oswald LeWinter and Karl Koecher were only a few cells apart from each other and maintained a relationship.{{cite news |title=Tinker, Tailor, Poet, Spy?; He's Played the Part of an Ex-CIA Agent for Years Now. It's a Convincing Act. |first=Vernon |last=Loeb |author-link=Vernon Loeb |author2=Bill Miller |url=http://jclass.umd.edu/archive/newshoax/casestudies/idfraud/IDPoet.html |newspaper=The Washington Post |location=Washington, D.C. |date=February 15, 2001 |page=C1 |access-date=January 22, 2013|archive-date=10 April 2015|archive-url=https://web.archive.org/web/20150410015935/http://jclass.umd.edu/archive/newshoax/casestudies/idfraud/IDPoet.html}}{{cite news |url=http://blisty.internet.cz/9907/19990726d.html#03 |title=Princezna Diana, milionář Fayed, CIA a český rozvědčík |trans-title=Princess Diana, millionaire Fayed, CIA and Czech intelligence |work=Britské listy |last=Čulík |first=Jan |author-link=Jan Čulík |date=26 July 1999 |access-date=9 March 2020 |archive-date=16 November 1999 |archive-url=https://web.archive.org/web/19991116033408/http://blisty.internet.cz/9907/19990726d.html#03 |language=cs}}}} a self-professed former CIA operative, to defraud Mohammed Al-Fayed with false documents that would support his conspiracy theories about the death of Princess Diana.{{cite news|url=http://www.indianexpress.com/res/web/pIe/ie/daily/19990724/ige24059.html|title=Dodi Fayed takes scriptwriters of Di's 'assassination' to court|author=Anjali Mody|date=24 July 1999|work=Indian Express}}{{dead link|date=December 2017 |bot=InternetArchiveBot |fix-attempted=yes }}{{cite news|url=https://www.independent.co.uk/life-style/al-fayed-and-the-cia-conman-1161637.html|title=Al Fayed and the CIA conman |author=Peter Koenig|date=3 May 1998|work=The Independent|location=London}}{{cite news |url=http://blisty.internet.cz/9907/19990727d.html |title=Západní rozvědky asi skutečně zatajují případ Diana. Já s ním neměl nic společného |trans-title=Western intelligence may actually hide the Diana case. I had nothing to do with him |work=Britské listy |last=Koecher |first=Karl |author-link=Karl Koecher |date=27 July 1999 |access-date=9 March 2020 |archive-date=18 January 2000 |archive-url=https://web.archive.org/web/20000118031656/http://blisty.internet.cz/9907/19990727d.html |language=cs}} He continues to live in the Czech Republic in relative obscurity. His wife, Hana Koecher, made the headlines in the Czech Republic, when she was fired from her new job as a translator for the British Embassy in Prague.{{cite news |last=Richter |first=Jaroslav |url=https://www.memoryofnations.eu/cs/kocher-karel-20070301-0 |title=Karel Köcher (* 1934): Nesloužil jsem nikomu jinému než sobě samému, svým hodnotám |trans-title=Karel Köcher (* 1934): I served no one but myself, my values |language=cs |work=memoryofnations.eu website |date=1 March 2007 |access-date=18 September 2023 |archive-date=18 September 2023 |archive-url=https://web.archive.org/web/20230918224817/https://www.memoryofnations.eu/cs/kocher-karel-20070301-0}}{{cite news |last=Šťastná |first=Barbora |url=https://www.memoryofnations.eu/cs/kocher-karel-20201214-0 |title=Karel Köcher (* 1934): Nesloužil jsem nikomu jinému než sobě samému, svým hodnotám |trans-title=Karel Köcher (* 1934): I served no one but myself, my values |language=cs |work=memoryofnations.eu website |date=14 December 2020 |access-date=18 September 2023 |archive-date=18 September 2023 |archive-url=https://web.archive.org/web/20230918223949/https://www.memoryofnations.eu/cs/kocher-karel-20201214-0}} The British were completely unaware of her espionage past until a Czech newspaper reporter notified them.{{cite news |url=http://www.spiritus-temporis.com/karl-koecher/ |title=Karl Koecher |work=spiritus-temporis.com |date=6 December 2014 |access-date=18 September 2023 |archive-date=6 December 2014 |archive-url=https://web.archive.org/web/20141206052302/http://www.spiritus-temporis.com/karl-koecher/}} A suit she filed against a media organisation for revealing her past as a spy, damaging her business, was rejected.{{Cite web|url=http://www.intelligenceonline.com/community-watch/1995/03/01/a-woman-translator-s-dark-past,65274-BRE|title=A WOMAN TRANSLATOR'S DARK PAST - Intelligence Online|website=www.intelligenceonline.com|access-date=2016-06-18|date=March 1995}}

An episode of the 2004 Canadian documentary series Betrayal! covered the Koecher case.{{Cite web|url=http://www.apltd.ca/films/display/52|title=Betrayal! - Associated Producers Ltd.|website=www.apltd.ca|access-date=2016-06-18}}{{Dead link|date=March 2025 |bot=InternetArchiveBot |fix-attempted=yes }}

See also

Notes

{{notelist}}

References

{{reflist|2}}

Bibliography

  • Benjamin Cunningham: The Liar: How a Double Agent in the CIA Became the Cold War's Last Honest Man, August 23, 2022, {{ISBN|978-1541700796}}.
  • Ronald Kessler: The CIA At War: Inside The Secret Campaign Against Terror, 2004, {{ISBN|0-312-31933-9}}.
  • Ronald Kessler: The Bureau: The Secret History of the FBI, 2003, {{ISBN|0-312-98977-6}}.
  • Ronald Kessler: The FBI: Inside the World's Most Powerful Law Enforcement Agency, 1994, {{ISBN|0-671-78658-X}}.
  • Ronald Kessler: Inside the CIA, 1994, {{ISBN|0-671-73458-X}}.
  • Ronald Kessler: Escape from the CIA: How the CIA Won and Lost the Most Important KGB Spy Ever to Defect to the U.S., 1991, {{ISBN|0-671-72664-1}}.
  • Ronald Kessler: The Spy In The Russian Club, 1990, {{ISBN|978-0-684-19116-4}}.
  • Ronald Kessler: Spy Vs Spy: Stalking Soviet Spies in America, 1988, {{ISBN|0-7153-9337-5}}.

{{Authority control}}

{{Soviet Spies}}

{{DEFAULTSORT:Koecher, Karl}}

Category:1934 births

Category:Living people

Category:Soviet spies against the United States

Category:Czechoslovak spies against the United States

Category:CIA agents convicted of crimes

Category:Slovak Jews

Category:People of the StB

Category:Columbia Graduate School of Arts and Sciences alumni

Category:Charles University alumni

Category:Czechoslovak prisoners sentenced to life imprisonment

Category:Former United States citizens

Category:People convicted under the Espionage Act of 1917

Category:People convicted of spying for Czechoslovakia

Category:Prisoners sentenced to life imprisonment by the United States federal government