“I’ve been very clear that Iran will not get a nuclear weapon on my watch, and I think they should understand that we mean it.” — President Obama to The New York Times’ Tom Friedman on Saturday

“What is a more relevant fear would be that in Year 13, 14, 15, they have advanced centrifuges that enrich uranium fairly rapidly, and at that point, the breakout times would have shrunk almost down to zero.” — Obama to NPR News on Tuesday