Joseph Lieberman actually said...

"It may be the tipping point."

"I think you spoke with real clarity which is that it's not going to be easy to convince the Iranians to stop the nuclear program."

"But it would also have, in a larger strategic context, a very threatening impact on the existing nuclear nonproliferation through the world and that would be a terrible consequence."

"I appreciate that. I agree totally and that's a real concern."