In April 2025, social media users claimed the CIA "just" released classified documents proving Nazi leader Adolf Hitler ...

Trump released formerly classified files on the JFK assassination. But what makes information classified and how does it become declassified?

Shocking documents declassified by the CIA have revealed a secret mission to find Nazi leader Adolf Hitler - 10 years after he supposedly died. According to multiple reports from the CIA archives ...

A bone-chilling document declassified by the CIA has exposed ... In the document, summarizing a 250-page top secret file acquired by US intelligence agents, eyewitnesses said five aliens climbed ...

Nearly one million pages of evidence about Britain's Cold War radiation experiments involving its own troops will finally be made public as a minister has ordered their release ...

Documents recently declassified by The New York Times reveal that a top U.S. general planned for ... of the battle for the base at Khe Sanh. The secret operation, code-named “Fracture Jaw ...

Newly unredacted documents mostly shed light on ... the memo makes clear that it was hardly a secret at the time. “C.I.A. occupies the top floor of the Paris Embassy, a fact well known locally ...

The National Archives began posting documents to its website Tuesday ... The three levels are Confidential, Secret and Top Secret, according to the archive. Information that could cause ...