"They don't pose the number one national security threat to the United States," Obama said. "I continue to be much more concerned when it comes to our security of the prospect of a nuclear weapon going off in Manhattan."

That is actually what the President said. I could wish he had phrased it differently but the remark was kind of off the cuff, I think. I take it as the concern we all have about the possibility of a suitcase-bomb.