Espionage

Lawyers for Diana Toebbe had argued for her release during a detention hearing Wednesday.

The couple pleaded not guilty in federal court to espionage-related charges that carry life in prison.

David Barnea is going to walk softly and carry a big stick -- or so he's been saying to Mossad's workforce and alumni.

They were arrested in West Virginia on Oct. 9 and charged in a criminal complaint with violations of the Atomic Energy Act.

The details of the Navy's nuclear submarine propulsion system are a closely guarded secret that has been shared with only one...

Jonathan Toebbe is accused of passing on design information about Virginia-class submarines to someone he thought represented...

Ecuador has revoked the citizenship of Julian Assange, the founder of Wikileaks who is currently in a British prison.

An advisory released by the U.S. National Security Agency describes attacks by operatives linked to the GRU.

Reality Winner was found guilty of violating the U.S. Espionage Act and sentenced to more than five years in prison.

In the 1960s, the CIA developed a Rectal Tool Kit designed to give its operatives critical escape tools that probably wouldn...