Iran is our biggest global threat. Unlike Russia or China who are content to be regional hegemons and are sane enough to eschew the use of nuclear weapons, the Iranians have continually told us, quite explicitly, that they intend to not only obtain nuclear weapons, but make use of them.
In the absence of Air Force bases within range of Iranian targets, strike missions into Iran would have to be carried out by carrier-based aircraft. The only strike aircraft of any note is the FA-18. The FA-18 has a combat radius of 390 miles.
The Iranian Navy and coastal defense system has been designed to defend the Persian Gulf with the goal of sinking American aircraft carriers. Contrary to the opinions of the racists who write for the major newspapers, the Silly, Little, Brown People With Funny Names Who Live Far Away are actually quite sophisticated and good at their jobs. Only an idiot wouldn't expect them to carry out their missions successfully. Unless you had no problem with losing several aircraft carriers, you'd have to launch carrier strike missions from the Indian Ocean.
Now take a look at the map of Iran. (You'll have to click on it and open it in a separate browser window because I'm too lazy to resize my central column to fit a reasonably detailed map.) Notice how the high value targets are the ones farthest away from the Indian Ocean.
Using my fingers on the computer screen because I'm likewise too lazy to install Google Earth on my recently reformatted laptop, it looks to me like the farthest north you'd be able to hit from a reasonably safe Indian Ocean launch point would be Kerman and even that's quite a stretch.
"But we have all those flying, refuely things!" the gay marriage experts who write for the newspapers will wail. Right. And they launch from ... where? And they connect with your FA-18s ... where? We no longer have bases in Saudi Arabia, Iraq or Afghanistan (very soon). Turkey is Islamist and recalcitrant. Pakistan isn't going to stick its neck out for some pusillanimous waffler who draws red lines one day and wanders off to the golf course without doing anything when the lines are crossed the next.
In any case, have you ever seen a KC-135? They're ponderous monsters. You'd have to refuel in Iranian airspace. Good luck with that. Iran has been building air defense systems for quite some time and they can do the same range calculations you can. The Silly, Little, Brown People With Funny Names can be pretty clever once they finish with their rustic, native dances.
By pulling out of Iraq and Afghanistan, we've completely neutered ourselves with respect to Iran. They are now free to do whatever they want, whether that's turning New York City into a sea of fire or slipping a few nukes to Islamist crazies with only the most nebulous ties back to Tehran so the Islamist crazies can turn New York City into a sea of fire.
Note to any MSM folks who might read this: I apologize for not covering an important topic like gay marriage, racism or social justice in this post. I don't know what I was thinking. I'm sure if you go to your browser's favorites, you can quickly click back to the Huffington Post and calm yourself by reading about how Tea Party Christians are crazy, racist homophobes.