Nothing will be done to stop Iran from getting nukes.
Our hands are tied because of Iraq. The US can not attack Iran now as we have 125,000 soldiers as targets in Iraq. Attack Iran, and the Shia majority in Iraq will go bonkers against us.
Isreal may try to derail Iran's nuclear dreams, but they just don't have the ability to launch the kinds of sustained strikes that would be needed to eliminate Iran's program in the long term.
Europe is a joke. Iran knows the Europeans are weak and spineless.
I'm afraid the truth is that Iran will join the nuclear club just like North Korea did. Not so long ago the US was commited to preventing the North Koreans from getting nukes.....and we all know how that worked out.
The West, to include the US, is just too awash in political correctness, multicultural nonense, squeamishness at the thought of any civilian casualities on the enemy side, etc.
We will wind up getting hit again and again at home before American attitudes change. Maybe at that time, we will finally realize that it is Islam that is our enemy - not just a few radicals.
I would hope they know how to defend themselves.