Iran's nuclear weapons

We have two ways to prevent Iran from getting nuclear weapons.  One path is to convince Iran to sign on to an international agreement to forego the production of nuclear weapon in return for lifting international economic sanctions.  This is the path of the Obama administration.

The second path is to go to war against Iran, launching an invasion, occupying the country, costing thousands, if not hundreds of thousands of American lives, and alienating both Muslims and most of our allies, except maybe Israel.  This is the path chosen by the Republican candidates for the presidency.

I prefer the first alternative.