Trump Downplays Signal Leak, Backing Waltz and Pointing Finger at Journalist

Democrats denounced the country’s top intelligence officials for “sloppy, careless, incompetent behavior” for discussing secret military plans in a group chat.

Were the Kennedy Files a Bust? Not So Fast, Historians Say.

The thousands of documents posted online this week disappointed assassination buffs. But historians are finding many newly revealed secrets.

In Deportations, Trump Tied Gang to Venezuela’s Government. Intelligence Contradicts Him.

To invoke wartime deportation powers, President Trump asserted that Venezuela’s government controls a gang. U.S. intelligence analysts think that is not true.

Shielded Kennedy Files Hid Spies, Not Conspiracies

Newly unredacted documents reveal details about Cold War spycraft, not a second gunman on grassy knolls. The revelations have “nothing to do with who killed Kennedy,” one expert said.

Inside the 24-Hour Scramble Among Top National Security Officials Over the J.F.K. Documents

The director of the Central Intelligence Agency emphasized that some documents had nothing to do with the assassinated president, according to people familiar with the discussions.

Plan to Return Russian Diplomats to U.S. Poses Espionage Risk

The Trump administration is negotiating the return of more Russian diplomats to the United States. Some are likely to be spies.

State Dept. Plans to Close Diplomatic Missions and Fire Employees Overseas

American officials, including in the C.I.A., are concerned about mass closures hampering national security work. And China has overtaken the United States in global diplomatic footprint.