"Is stopping Iran from getting nuclear weapons really like improving health care or advancing the Middle East peace process? I would have thought not. The American (and European) position -- and the position of candidate Obama -- has been that this Iranian regime acquiring nuclear weapons is "unacceptable." If that's so, then there's a deadline, so to speak, to all the incremental efforts. And since, by all accounts, that deadline is fast approaching, there would have to be a certain speed to the hoped-for "steady progress." President Obama seems to evince no sense of urgency about Iran's nuclear program. Did his relaxed statement about Iran tonight suggest he has quietly decided to accept the previously unacceptable?"

from here