People need to stop blaming increasing violence on increasingly available weapons.  Demand for weapons rises when people feel the need to use them or the need to defend themselves.  People in the United States are arming themselves because they realize that our government is growing increasingly totalitarian.  A well armed populace is the best and only defense against tyranny--so as for "black market" weapons, I can only voice my support for those who choose to arm themselves, and only my respect for those that choose to fight back against increasingly repressive police forces.  The only puzzle to me is why people continue to think that they are made more free by tighter control.