Signal Chat Leak Angers U.S. Military Pilots

Men and women who have taken to the air on behalf of the United States expressed bewilderment after the leak of attack plans. “You’re going to kill somebody,” one pilot said.

How the White House Uses Semantics to Downplay the Signal Leak

War plan or battle plan? Classified or not? The answers to those questions amount to a distinction without much of a difference.

After the Signal Leak, How Well Do You Know Your Own Group Chats?

A journalist’s inclusion in a national security discussion served as a reminder that you might not know every number in the chat — and that could be a big problem.

Republicans in Congress React to Signal Chat Leak With Collective Shrug

A few G.O.P. lawmakers said they would look into the breach, but party leaders largely tempered their criticism of the Trump administration.