Mitt Romney, Newt Gingrich Talk Nuclear Weapons, Military Action Against Iran (VIDEO)

Mitt Romney said his first trip, if he is president, will be to Israel, "to show the world we care about that country and that region."

Romney did not say whether he would help Israel launch an attack on Iran to stop Tehran from getting nuclear weapons, because inexplicably he wasn't asked. Romney did say that he favors "crippling sanctions" and indicting Iranian President Mahmoud Ahmadinejad at the United Nations for inciting genocide.

Romney said he knows that further sanctions on Iran would increase the price of energy, but said "there is no price that is worthy of an Iranian nuclear weapon."

Newt Gingrich was asked if he would take military action against Iran, and said he would with one caveat: it would have to lead to regime change.

But Gingrich added: "If my choice was to collaborate with the Israelis on a conventional campaign or force them to use their nuclear weapons, it would be an extraordinarily dangerous world if out of a sense of being abandoned they went nuclear and used multiple nuclear weapons in Iran. That would be a future none of us would want to live through."