Former US Ambassador to the UN John Bolton has this to say about negotiations with Iran:
When the U.S. negotiates with “terrorists and radicals,” it gives them legitimacy, a precious and tangible political asset. Thus, even Mr. Obama criticized former President Jimmy Carter for his recent meetings with Hamas leaders. Meeting with leaders of state sponsors of terrorism such as Mahmoud Ahmadinejad or Kim Jong Il is also a mistake. State sponsors use others as surrogates, but they are just as much terrorists as those who actually carry out the dastardly acts. Legitimacy and international acceptability are qualities terrorists crave, and should therefore not be conferred casually, if at all.
Moreover, negotiations – especially those “without precondition” as Mr. Obama has specifically advocated – consume time, another precious asset that terrorists and rogue leaders prize. Here, President Bush’s reference to Hitler was particularly apt: While the diplomats of European democracies played with their umbrellas, the Nazis were rearming and expanding their industrial power.