Why? Because they trust Israel won't bomb their country or their Military bases and that they'll fight to protect America's interests in the ME. When Iran stops stoning Women, hanging children, murdering Gays, accept the reality of the Holocaust and stop threatening to destroy Israel they might garner a better response. In short, America supports the state of Israel (although the support is fading fast with the idiot Netanyahu making a better job of destroying it than any Suicide bomber could., while America does not trust Iran or Radical Islam. In truth most people are fearful of Islamic extremism, for good reason.
Greek authorities find 5,000 shotguns, 500,000 rounds of ammunition on Libya-bound freighter (AP)
from the article: Iran makes five-point proposal to world powers in Baghdad nuclear talks