Newly declassified British documents show that Queen Elizabeth II wasn’t told details of her long-time art adviser's double ...

Britain’s National Archives on Tuesdayreleased declassified MI5 domestic counterintelligence agency files containing the ...

Recently declassified MI5 files have shed light on one of the most infamous chapters in Cold War espionage, revealing ...

Documents newly declassified by MI5, Britain's internal intelligence agency, show the late Queen Elizabeth II was not ...

The newly-declassified documents include details about some of the UK's most notorious spies.

QUEEN Elizabeth II was kept in the dark for a decade about a Russian spy who infiltrated her household and was one of her ...

Newly declassified files show the moment the notorious Cambridge double agent finally confessed to his treachery.

In response to the Jan. 6 Capitol riot four years ago, Congress passed new rules to govern the presidential certification ...

Police and MI5 fear Islamic State supporters could be ... It’s always a delicate balance between security, safety and our freedoms. There are so many streets in the UK that you would call ...

Police and MI5 are worried that Islamic State supporters could be triggered ... It’s always a delicate balance between security, safety and our freedoms. There are so many streets in the UK that you ...

EXPERT INTERVIEW — As a new year begins, with a long list of threats and global security challenges looming, we offer a view of those challenges from someone with a unique vantage point: the former ...