1. Criminals don't care about gun control laws.  2. Preventing law-abiding citizens to protect themselves is an irresponsible decision made by many lawmakers.  People who use guns to harm people are "bad" people.  3. People who carry guns concealed are more able to protect our citizenry than police are capable to do in a short amount of time.  4.  Deterrence worked during the cold war years...so concealed carry is a form of deterrence and works.  5.  Why do criminals chose gun-free zones to attack...because there are no guns...refer to point #1.  6.  In a world with terrorists targeting a population removing their ability to protect themselves is irresponsible and un-American!