The general held himself up as a paragon of self-discipline and model family man. In Iraq and then Afghanistan, he rigorously enforced “General Order No. 1,” which prohibits our troops from fraternization, all sex, alcohol consumption, the possession of pornography and, generally, from any activity that might make the boredom and terror of this kind of war more bearable. When our troops screwed up, they got hammered.

Generals can take a weekend in Paris and get drunk (as Gen. Stanley McChrystal did), but the grunt who goofs in a firefight faces a court-martial.

Now those who’ve tied their military or literary careers to Petraeus and his inept counterinsurgency doctrine are rushing to make excuses for the general: He’s too important to be sacrificed like this, the president shouldn’t have accepted his resignation (resignation my butt — the guy was fired), and the affair only started after he left the military . . .

No man’s too important to be sacrificed.