President Obama fired back at Governor Romney's challenges that he is weak in foreign policy, in his interview on CBS 60 Minutes, broadcast tonight.

In an interview airing the night before Obama meets with other world leaders at the United Nations, the president said, "If Gov. Romney is suggesting that we should start another war, he should say so."

It was Obama's most direct rebuttal yet to persistent skepticism by his White House rival on his handling of an unraveling situation in the Middle East. Romney has charged the U.S. stance has been marred by miscalculations, mixed messages and appeasement.