MANCHESTER, New Hampshire (CNN) - When asked if he would authorize a U.S. strike on Iran's nuclear facilities that were being used to develop dangerous weapons, California Rep. Duncan Hunter said he would - in the unlikely situation that there were no other options.
"I would authorize the use of tactical nuclear weapons if there was no other way to preempt those particular centrifuges," Hunter said at Tuesday's GOP presidential debate sponsored by CNN.
"Probably, it's going to take a little more than that. I don't think it's going to take tactical nukes," he added.
Former New York City Mayor Rudy Giuliani warned of the dangers of a preemptive strike.
"Part of the premise of talking to Iran has to be that they have to know very clearly that it is unacceptable to the United States that they have nuclear power," he said.
"I think it could be done with conventional weapons, but you can't rule out anything and you shouldn't take any option off the table," Giuliani said.
"These are real problems. This war is not a bumper sticker. This war is a real war," he added.
– CNN.com Writer Kristi Keck