National Security

The shooter was an officer in Saudi Air Force who was a student at the Naval Air Station Pensacola. The FBI said the Saudi government has pledged its cooperation.

Dr. Marie-Roseline Bélizaire says the United Nations is failing to keep its medical workers safe.

Democrats are going forward with impeachment against President Trump. During a hearing this week, they tipped their hand about the three articles they might bring forward.

There are lots of reasons U.S. foreign aid can be held up or frozen. There's even a law that governs the issue. But many experts say what happened over the summer with Ukraine is highly irregular.

NPR's Mary Louise Kelly speaks with New York Times reporter John Ismay about his investigation into the deadly history of unexploded cluster bombs accidentally killing U.S. troops that handle them.

A Syrian man says his arm was blown off and two friends were killed by U.S. helicopter fire during the assault on ISIS's leader. A defense official said the military will review what happened.

Despite the president's criticism of the alliance, his administration has spent far more on a European defense program than did the Obama White House. U.S. troop levels in Europe have also risen.

Pyongyang did not elaborate on the statement, but in 2017, state media referred to North Korea's first test launch of an ICBM as part of a "package of gifts" for the U.S.

GOP lawmakers have released their findings about the investigation. They maintain that the process was sham — and unfair to President Trump.

The 123-page release mirrors rebuttals that top GOP lawmakers have been making for weeks amid the House Democrats' probe into whether Trump withheld congressionally-appropriated funds for Ukraine.

The pair of Soviet-born business contacts was indicted in connection with alleged campaign finance violations. They had a status conference in their case on Monday in New York City.