Which is why some people believe what's going on in Lebanon is designed to sucker Syria and Iran into the fray so they can be attacked with impugnity.
For the most part, countries in Europe would not mind preventing Iran from getting nukes because they fear they will be held hostage to a potential attack. The greatest howls will come from Russia, China, and the islamic UN...but if Iran and Syria can be teased into the conflict, they are fair game.
A part of me thinks that European and American leaders must be somehow stockpiling energy to prevent the disloications that would come from sudden withdrawal of the Iranian oil teat. There is no way to overestimate the impact of the Russian wake up call on Europe when Putin turned off the gas to Ukraine last winter. Everyone realized that dependance on irrational and irresponsible dictators is complete folly.