Juan Zarate, senior adviser at the Center for Strategic and International Studies, talks about intelligence failures in the run-up to the blasts. Zarate is a former deputy national security advisor.
Belgians remain shocked and sad in the aftermath of the bombings. But King Philippe said they would respond to the terror threat with calm and dignity.
Sen. Angus King, of Maine, is in Europe with other members of the Senate Intelligence Committee members on a national security-focused delegation. The attacks in Brussels are now a top priority.
Bernie Sanders and Ted Cruz both drew victories on Western Tuesday. Hillary Clinton and Donald Trump's wins in Arizona may likely mean their overall delegate lead won't winnow much.
After scandals around veterans waiting too long for care in 2014, Congress pushed through a $10 billion fix to get those vets care, fast. Now it's almost unanimous: The fix is broken.
Terrorist attacks in Brussels killed at least 31 and wounded at least 270 on Tuesday. As the city mourns, police continue to search for a suspected accomplice.
Freemasons are best known for their secrecy, but they are having a very public dispute — about a ban on gay members. Freemasons in Tennessee will decide this week whether to lift the ban.
Fred Kaplan, author of Dark Territory, traces the history of cyber defense into the current heated debate between the FBI and Apple over the encryption of the iPhone.
Forty-seven years after a vaccine against rubella was created, the virus still harms about 300 newborns every day, worldwide. Even a cheap vaccine can be a financial burden for poorer countries.
It's unclear who's responsible for Tuesday's blasts, but they follow the arrest of a suspect in the Paris attacks. Brookings senior fellow William McCants, author of The ISIS Apocalypse, weighs in.