I spent a career carrying typically either an M16 or an M4 Carbine. An M4 Carbine fires a .223 caliber round, which is 5.56 mm at about 3000 feet per second.

What scares me about drone strikes is how they are perceived around the world. The resentment created by American use of unmanned strikes... is much greater than the average American appreciates. They are hated on a visceral level, even by people who've never seen one or seen the effects of one.

The number of people in America killed by firearms is extraordinary compared to other nations, and I don't think we're a bloodthirsty country. We need to look at everything we can do to safeguard our people.

Stanley A. McChrystal Quotes