The U.S. Shouldn't Attack Iran

The Cafferty File, part of The Situation Room on CNN, poses a question every hour The Situation Room is on. This is today's 4:00 question, and Thoughts on the World's response.
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The former U.S. ambassador to the United Nations says Iran should be attacked before it gets nuclear weapons. Is he right?

No; coercive diplomacy, not military action. Iran has to be isolated through sanctions and diplomatic pressure. Military pressure in Iraq is a good idea too, but directly attacking Iran would be wrong. We need to slowly isolate them until they give up.