At ease, Marines, and be seated" orders the gruff Gunnery Sergeant. "Now turn to Chapter 8 in your Military Constitutional Law text," he continues. "Today we discuss the appropriate conditions for shooting a colonel who is issuing an order which would violate the Constitutional rights of American citizens. Our first scenario involves gun seizures..." Absurd, isn't it, to think that this sort of education is conducted among our armed forces? Yet, millions of citizens indulge this unspoken fantasy each time they imagine that the military exists to preserve our freedoms. When I was at the Naval Academy in the mid-80s,...