Gun manufacturers have taken in more than $1 billion from selling the weapons over the past decade, at times marketing them as a way for young men to prove their masculinity.
Firearm company CEOs testified at a congressional hearing that their products are legal and they are horrified by violence but guns themselves aren't to blame.
Yesterday, a congressional committee held a hearing on an assault weapons ban, and we heard all the familiar arguments about how that would punish a lot of innocent gun owners.