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Glenn Carle, a former CIA officer, reveals that he was instructed to use torture methods on a high-ranking al-Qaeda member shortly after September 11.
Ben Zygier's actions lead to his mysterious identity and brutal fate with the Mossad.
After 9/11, the Department of Homeland Security created fusion centers in each state to centralize information sharing among law enforcement and private sector partners.
Operation Ajax highlights the covert U.S. actions that influenced the 1953 Iranian coup, providing educators with resources for teaching foreign policy.
A large-scale nuclear attack on the United States could produce a patchwork pattern of fallout covering two-thirds of the nation.
Mata Hari, an exotic dancer in early 20th-century Europe, is often linked to espionage activities for Germany during World War I.
Operation Mincemeat, a World War II deception strategy, is examined alongside the role of rat poison in Cold War espionage tactics.
Efforts to restrict White House leaks to the press, initiated during the Nixon administration after the Pentagon Papers publication, continue to shape First Amendment debates.
Rose Greenhow, a Confederate spy in Washington, D.C., utilized her social connections to gather intelligence that significantly influenced the Civil War.
In 1971, Vietnam War protestors infiltrated an FBI office in Pennsylvania, stealing hundreds of documents and revealing government secrets.
Sir Alex Younger, the former MI6 chief, discusses modern spycraft, the Iran conflict, and American intelligence in his final interview before his death in June 2026.
A 1953 coup in Iran, supported by the CIA, has had lasting effects on the relationship between the US and Iran for decades.
At Camp X in 1942, spies were taught a very simple lesson about ruthlessness in warfare.
A telegram sent on May 15, 1944, by Agent Bronx contained a coded message about an upcoming Allied attack in the Bay of Biscay.
Sixteen nuclear missiles were deployed on Soviet submarines during the Cuban Missile Crisis, prompting a massive U.S. military response and surveillance operation.
Herman Simm, a former Soviet militia officer, sold NATO's military secrets to the Kremlin for over 13 years, prompting a major counter-intelligence operation.
Helias Doundoulakis spies in German-occupied Thessalonike during WWII, risking his life for secrets.
The Hamas attack on Israel on October 7, 2023, highlighted vulnerabilities in intelligence services, prompting an examination of global intelligence dynamics and challenges.
Thousands of diplomatic documents were stolen from the European Union's Correo messaging system between 2015 and 2018 in a cyber attack attributed to China.
Aerial reconnaissance photographs reveal a submarine testing basin hidden inland from the harbor during World War II.
Mortaza Behboudi was arrested on January 7, 2023, just two days after arriving in Afghanistan, accused of espionage by the Taliban.
On July 7, 1977, Gabrielle Kleim met Frank, an East German spy, who used romance to gain access to sensitive information during the Cold War.
A town in central Ukraine trains Soviet youth to mimic American life, surrounded by barbed wire and armed guards.
Six American hostages escaped from the U.S. embassy in Iran in 1979, aided by a CIA operation that created a false identity as a Canadian film crew.
$400 billion to $600 billion a year is estimated to be stolen by the Communist Party of China through trade secret theft and industrial espionage.
Norm Macdonald's fearless comedy at the ESPYs challenges norms and faces backlash.
CIA officer Bill Daugherty shares his experience of being one of 52 Americans held hostage for 444 days during the 1979 Iran Hostage Crisis.
A WWII Australian submarine mission aims to rescue spies in occupied Borneo from the Japanese.
Xavier Ameil, a French civilian, risks his life as a handler for a KGB spy.
A Mossad operation to rescue Ethiopian Jews in Sudan faces gunfire from a hostile patrol.
Barack Obama discusses Edward Snowden's case and US-Russia cooperation after the Boston Marathon.
IMSI catchers in London raise privacy concerns amid police surveillance practices.
A Chinese spy balloon over Latin America strains U.S.-China relations and draws American attention.
Watch Secrets Declassified with David Duchovny on Fridays at 10/9c on HISTORY.
Attorney General Jeff Sessions plans to announce a new strategy against leakers tomorrow.
A German physicist named Klaus Fuchs infiltrated the $2 billion Manhattan Project during World War II, sharing secrets with the Soviets.
Havana syndrome cases at the US Embassy in Bogota raise concerns after Wall Street Journal reports.
China warns Australia over the detention of Australian writer Yong Hong Jing amid rising tensions.
Sir Alex, a former chief spy, spent 30 years in espionage, often operating in everyday settings like shopping malls and pubs.
China condemns the U.S. for downing a suspected surveillance balloon on Saturday.
The CIA uses tech sabotage against the USSR, aided by President Mitterrand's information from France.
The NSA uses Dropout Jeep malware to take over smartphones and collect user data.
This extra scene reveals the controversial use of IMSI catchers by UK police in Britain.
The U.S. reviews National Security after classified documents leak about Ukraine and Russia.
New details have come to light about Denmark's role in U.S. spying on European politicians.
Oleg Penkovsky, a high-ranking officer of the Soviet Military Intelligence, betrayed sensitive information about Moscow's nuclear capabilities due to personal grievances.
Vladimir Vetrov, a KGB colonel, reveals to French intelligence that Soviet spies are using detente to steal Western technological secrets.
A Russian diplomat, suspected of being a spy and identified as a second secretary at the Berlin embassy, was found dead outside the embassy on October 19, 2021.
