I agree the Israeli threat is different. Iran does not occupy Arab land, Iran does not have Nuclear Weapons, Israel does. Iran does not look at its Arab neighbours as being inferior Goim, Israel does. Israel does not interfere in Lebanon other than when it wants to destroy it, Iran interferes to rebuild it. Iran and its Arab neigbours share a 1500 year Islamic History, the only thing that Israel shares with the gulf states is their weapons supplies, from the same Evil Empire!
US rally shows support for ex-Marine held by Iran on spying charges (AP)
from the article: Gates: Israel doesn't pose nuclear threat like Iran