IMO, sanctions were the tool to bring Iran to the table. Whether we like it or not Iran has the knowledge within its borders to develop a Nuclear program... despite the fact that a couple of their prominent scientists have been assassinated
http://www.cbsnews.com/news/us-pushing-israel-to-stop-assassinating-iranian-nuclear-scientists/
Justified or not, I don't think I'm wrong in imagining the hawks in this country being quite vocal if Israeli or American citizens were targeted...
Another thing that people may not like is that U.S. foreign policy decisions in the M.E. may have contributed to Iran wanting to have this knowledge.
http://www.nbcnews.com/id/46434250/...uld-happen-if-iran-did-get-bomb/#.VQGhDY7F_sw
Given the volatility of the M.E., we also know that using military force in the M.E. let alone any covert operations is risky...
Unlike Iran, which has learned from history (given its move to distribute its nuclear facilities and harden them against air strikes after Iraq's reactor was destroyed by a few F-16's), it seems that many people talking about this issue don't pay attention to recent or not so recent events.
We now have to deal with the realm of the possible. It is doubtful considering the fallout of past invasions that the U.S. can get a coalition of countries to invade Iran... notwithstanding that such an invasion would provide so much recruitment propaganda for extremists in the M.E. (if only there was a strongman to keep them out of Iraq... oh wait.... we killed him it's a good thing we stopped him from... oh wait... we didn't find modern WMD facilities there...)
What is possible is slowing down Iran's development of a breakout capability (to quickly assemble a Nuclear weapon), which they arguably would not have such a desire for except for Western intervention in the M.E., with the lifting of sanctions in exchange for Iran opening up their facilities for inspection. It seems logical that a condition of sanctions not being re-implemented is Iran allowing inspectors to go where ever they want when ever they want.
While it is possible to stop Iran's nuclear program given the U.S. military's arsenal of extremely large conventional munitions, the political fallout from taking such a course could in the long run harm Israel far more than Iran being on the verge of a break out capability....
It must also be noted that many young Iranians do hold a favorable view of the U.S. because of the cultural exports... they may not have political power yet but no one lives forever and as the old hard liners in Iran die perhaps some of those younger people will move into positions of political power.
People in Washington acting like fuckheads does nothing to help U.S. Foreign policy....
one last note....
https://twitter.com/JRehling/statuses/575698631811956736
TLDR: sanctions arguably brought Iran to the negotiation table and it seems logical that keeping sanctions lifted is the positive reinforcement for Iran behaving while sanctions being re-implemented is the negative reinforcement...
Of course we could take a path to be certain that Iran doesn't have any nuclear capability... but it's doubtful that there is any political will to do so... because ground invasions in that area have always worked sooo well.
.....