We would very much like to see Iran take a position as a responsible leader that doesn't intimidate or threaten or scare its neighbors and others. But the choice is really up to Iran and we're going to keep working to try to come out with the right decision.
Namely, we have no right to believe a thing true because everybody says so unless there are good grounds for believing that some one person at least has the means of knowing what is true, and is speaking the truth so far as he knows it.
To consider only one other such witness: the followers of the Buddha have at least as much right to appeal to individual and social experience in support of the authority of the Eastern saviour.
If an elderly but distinguished scientist says that something is possible, he is almost certainly right; but if he says that it is impossible, he is very probably wrong.