National Security

Now out of an Iranian prison, Washington Post correspondent Jason Rezaian thanked his colleagues on Thursday for working for his freedom.

For the past decade, a Veteran Service Office operating inside a prison has aided 1,000 incarcerated veterans in receiving more than $15 million in benefits for themselves and their dependents.

The VA says it overpaid $24 million to 2,200 incarcerated vets, including Clay Hull. Despite filing required paperwork to forfeit part of his checks while in prison, he was still sent the full amount.

Defense Secretary Ash Carter's metaphor for ISIS is that of a cancer that must be excised before it can metastasize. Critics say the description misunderstands the nature of the problem.

Recent terrorist attacks have prompted changes to the U.S. visa waiver program. But the changes have caused confusion in Europe and critics say they could spark retaliation.

Earlier this month, a man opened fire on a Philadelphia policeman. The suspect later told police he did it for ISIS, but authorities have found no link between him and the extremist group.

For more than 30 years, Iran has been a black hole for the CIA and other intelligence agencies. U.S. spies are hoping to capitalize on the latest diplomatic contact between Tehran and Washington, D.C.

The State Department has released details of new limits on the visa waiver program, which allows people from 38 countries to fast-track their travel to the U.S.