Organized protests against the appearance of Iranian President Mahmoud Ahmadinejad at the U.N. began even before he arrived in New York City. A group of about 40 elected officials and civic leaders gathered Sunday outside Columbia University, where Ahmadinejad is scheduled to speak on Monday. Some carried placards with slogans such as "Don't give a platform to hate," and "Go to hell," while denouncing Ahmadinejad as a "Hitler wannabe" and a Holocaust denier. Said New York state Assemblyman Dov Hikind: "There is no excuse to invite this madman, this little Hitler. "This is immoral. This is outrageous. This is sick....