[MrEdd]

of course, if Iran starts firing WMD equipped weapons into israel (which I am sure some DOE/CIA report someplace says they cannot possibly have!), or uses their syrian/hezzbollah proxies to do so - then all bets are off.

But high explosive rockets and artillery is OK?

[oceanview]

well, its not "OK" - but its not on a tier that would bring the US into it.