I dont believe this canor will be stopped - well not except if russia gets on board to halt the iranians - but seeing as how russia has egged them on all this time and stands to profit immensely from the ensuing world chaos - unlikely. The US/Israel must stop Iran or else nukes are going to end up in US cities and/or Israel at some point, and the mullahs see this as their big chance to prepare the stage for the 12th immam.