A routine discussion among top US officials on a messaging app which also had the editor-in-chief of a leading American ...

From war plans to surveillance secrets, America's biggest intelligence leaks have exposed military strategies, covert ...

National security advisor, Mike Waltz, has subsequently “taken responsibility” for the episode – but, so far at least, ...

Journalists have been assiduously careful about how they handle classified information. The White House could study past ...

The Guardian newspaper’s investigative work ... pursuing journalists who publish classified materials. The Edward Snowden leaks caused considerable damage to transatlantic intelligence and ...