In his address to the United Nations on Thursday, Obama repeated for the umpteenth time that “the United States and the international community seek a resolution to our differences with Iran, and the door remains open to diplomacy should Iran choose to walk through it.” Shortly thereafter, while speaking to the same audience, Iranian President MahmoudHow much more proof does President Obama need to realize his policy of engagement with Iran is the political and diplomatic equivalent of casting pearls before pigs? Ahmadinejad slammed the door shut, telling the U.N. that the 9/11 attacks on America were mounted by “some segments within the U.S. government orchestrated the attack to reverse the declining American economy and its grips on the Middle East in order also to save the Zionist regime. The majority of the American people, as well as other nations and politicians, agree with this view.”