If you ever get a chance to see Grossman in person GO! It's an understatement to call him a dynamic speaker. My favorite quote "piss on golf!" referring to the need to get to the shooting range and practice.

There's a great comment on the second video by a martial arts instructor. TV does promote violence, but as he says, there are no video games in Darfur and TV in Rwanda is almost nonexistent. Violence happens. It's in human DNA. TV accentuates the individual propensity for violence, but I've been involved in too many African civil wars to believe it has anything to do with the bottom line. People kill others because they want to. It's as simple as that. The old sheep, wolves, and sheepdog metaphor is completely true. Predators exist. Me, I'm a sheepdog. I'll kill any scumbag I can who is about to attack me or any innocent person.