The US does have a plan to bomb the living hell out of Iran...
Bombers, Missiles Could End Iran Nukes: Pentagon Has Plan For Attack -- Washington Times... not just John McCain.
A Pentagon strike against Iran would rely heavily on the B-2 bomber and cruise missiles to try to destroy the regime's ability to make nuclear weapons, analysts say, after the top U.S. military officer said a war plan is in place.
The missiles, fired from surface ships, submarines and B-52 bombers, would take out air defenses and nuclear-related facilities.
The B-2s would drop tons of bombs, including ground penetrators, onto fortified and buried sites where Tehran is suspected of enriching uranium to fuel the weapons and working on warheads.
I've been talking about this since the FIRST Iraq war... which means that all this report means is that there's already been a lot of saber rattling and rhetoric - and this is just some more of the same course. Economic sanctions has been the preferred route, the U.S. military option has always been vague and short of specifics - as it should be.
The current course of big talk will continue until Iran announces that they have enough enriched nuclear material to produce a small nuclear arsenal. Until then .... I expect more veiled threats and international posturing.