Iran is the current bogeyman presented to Israeli government. In the past, it has been Iraq, Hizbollah, suicide bombers, Arafat, etc. It is always someone or something. Israelis feel comfortable in the "victim" role. Much less so in their role as conqueror and occupier. To give credibility to this role, Israel needs Iran to be posed to launch a nuclear strike on Israel. Never mind that Iran has no nuclear bombs and no history of starting wars, Israelis have the enviable talent of believing anything they want to believe no matter what the facts.
Brazilian head of UN peacekeeping force in Haiti dies of heart attack (Reuters)
from the article: Barak to Haaretz: Iran won't drop nuclear bomb on Israel