Of course not, are you fucking stupid?
No really, are you?
Pre-emptive attacks against Iran, unless we completely knock them back into the stone age and destroy their support base, are counter productive. The cost of damage from an Iranian strike relative to the ease of turning their habitable area into a scene found in Fallout 3 is negligible. If they want to play like big kids they can, but they better realize they have the option of playing nicely or being swept off the board. The type of weapons they're developing, while serious in implication, are of limited use and much less practical than various alternatives.