It was leaked that the military had passed a survey amongst some of its units and asked them if they would shoot to kill US citizens if they were ordered to give up their guns and refused. This was about the time Britain lost their guns and Australia was talking about it. After Ruby Ridge and Waco, Freepers weren't feeling too safe with the "bent one" in charge. We had reports of "blue helmets"( The UN was voting to ban private ownership of guns) and "foreign looking" soldiers in convoys going across the country. It wasn't a pleasant time in our history. Supposedly the outcome of the survey to shoot citizens was in the single digits. I thought that was too high. Maybe a class in Constitutional law should be mandatory in Basic training now. They sure don't get it in High School.
I see your point on the 2nd Amendment issue. I was actually thinking about some type of possible jihadist attack on one of our cities which would necessitate such training by the Marines.