IMHO, the greatest danger in all of this is that there is no longer any margin whatsoever for error/patience.
When Saddam fired Scuds at Israel during the Gulf War, Israel knew that these were crude/rudimentary missiles with conventional warheads. Israel thus honored the request of the United States to not respond/retaliate.
The situation with Iran is quite different. Bellicose Iranian statements. A missile (Shahab-3) that can certainly reach Israel. The refusal of Iran to fully cooperate with the IAEA and/or accept EU/Russian carrots that would defuse the situation.
Israel can no longer wait to determine if an incoming Iranian Shahab-3 is conventional or nuclear tipped. One single such incoming incident could now have unimaginable horrific consequences for Iran. She is playing an *extremely dangerous* game.