In a new International Poll 81% of people voted that Iran was a serious or moderate threat to the U.S. Three quarters of Americans said that North Korea poses a similar threat to the U.S. Also, that Iran would be more of a threat if they obtained nuclear weapons because it would destabilize the region.
http://security.blogs.cnn.com/2012/04/18/cnn-poll-iran-a-bigger-threat-to-u-s-than-north-korea/
