U.S. National Security Adviser Michael Waltz inadvertently added The Atlantic's editor-in-chief, Jeffrey Goldberg, to a Signal group chat in which Trump administration officials discussed details ...

If Mike Waltz knows anything about national security, he sure isn’t acting like it. As it turns out, adding a journalist to a Signal channel in which top Trump administration officials discussed ...

America's top intelligence officials were on Capitol Hill today for a preplanned hearing on global threats. The hearing comes after news broke yesterday that senior U.S. security officials discussed ...