Iran has regularly and officially called for Israel's destruction since the days of Khomeini. The current Iranian president has regularly called for Israel to be "wiped off the map", and is now wishing to arm with nuclear weapons, his hordes shouting "Death to America and Israel!!". Should we repeat the ignoring of Hitler's "Meine Kampf", where he clearly stated his intentions, as a joke? No, thank you.
5 wounded Syrians rushed to northern Israeli hospital (Haaretz)
from the article: Ahmadinejad: Israeli, U.S. threats don't affect Iranian policy