you got the short end of the stick on this one. it's far easier to argue that cun control laws are generally *not* effective, but there's nothing you can do about that.

if you want to make this VERY easy, I'd recommend an actual gun forum. just explain your situation and they might be able to give you some good data. again, it would be a lot easier to argue the other way around, but whatever.

www.thehighroad.org
www.glocktalk.com

both are good