Gun Control and Crime

http://www.nraila.org/media/misc/ACCC.htm

Guns are used much more often in self-defence than in violent crime. 

>>43
       "Compulsory anything wouldn't be in accordance with the values system you would be trying to promote."
      When you send someone to prision is it not compulsory, when you get a traffic ticket is it not compulsory, when you pay taxes is it not compulsory, when you go the speedlimit is it not compulsory?
       How is "Compulsory anything" not in accordance with the values we would be trying to promote?