National Security

The Marine Corps is running a test to see if women can serve in ground combat. "A lot of people think that we can't do it," says one Marine who's trying to make the cut. "I don't think the same."

President Obama announced the defense secretary's resignation Monday morning. Chuck Hagel clashed with White House adviser Susan Rice on Syria policy, and he never made it into Obama's inner circle.

The deal that lifted some economic sanctions in return for inspections of Iran's nuclear program expires Monday. Intense negotiations are underway this weekend to reach a more permanent agreement.

Vice President Joe Biden wraps up his trip to Turkey, where he held talks on the fight against ISIS. The U.S. and Turkey disagree on how to deal with the threat of the so-called Islamic State.

The White House is reviewing how it handles hostage crises following the brutal murders of Americans abroad, but families of hostages say they're often left out of the conversation.

The CIA plan calls for deleting the email of almost all employees after they leave the agency. But opponents say this would erase too many important documents. The example they cite: Edward Snowden.

Last September's entry into the White House by an Iraq War veteran who scaled the fence along Pennsylvania Avenue is the focus of another hearing on Capitol Hill Wednesday.