Was Israel hurt by Ahmadinejad at Columbia?

In this morning's Haaretz - of all places - Shmuel Rosner argues that Israel was the loser in yesterday's appearance by Iranian President Mahmoud Ahmadinejad at Columbia University: In his speech, Ahmadinejad took aim at Israel. If he managed to convince one person of his views on Israel and Zionism, then he has already gained. If he managed to persuade 50, then he has gained even more.For months