Two brothers have been identified as the Brussels suicide bombers. It appears as if the attack was tied to recent law enforcement raids in the city and “a sense that the noose was tightening.” And one of the bombers had been “caught” in Turkey last year. Here’s the latest from The Guardian.

+ “When we have to contact these people or send our guys over to talk to them, we’re essentially talking with people who are — I’m just going to put it bluntly — children. They are not pro-active, they don’t know what’s going on. They’re in such denial. It’s such a frightening thing to admit their country is being taken over.” The Daily Beast on the major concerns about Belgian security forces. And from Slate: It’s no mystery why ISIS picked Brussels as a base.

+ One of the Americans who was injured at the Brussels airport was also a block away from the Boston Marathon bombing.