While I am still skeptical of this and don't have much confidence in Iran, I heard Obama in a speech today and agreed with him 100%. He said that diplomacy is the most responsible option, and that any option is better than war.
Clinton said the exact same thing (and a lot more of the same kind of stuff it's actually weird how much of the language is the exact same) about N.Korea....how'd that turn out? I guess you could argue that N.Korea hasn't nuked anybody yet, but have they exported as much terrorism as Iran has over the last several decades?
The comparison is misleading, since the agreement with North Korea was non-binding (which also meant that the US was later free to ignore its obligations, which certainly helped the eventual collapse of the treaty) and with few safeguards for its implementation. Also Iran can't ignore sanctions nearly as well as North Korea, nor has it an ally that would back it near unconditionally. If Clinton used nearly the same wording as Obama, then this only shows that he was more dishonest than Obama (which explains a lot about his much greater popularity).