There's a list and it's black Jesus people don't you know that's "racist?" There also seems to be quite a good number of "extremists" and "terrorists" on said list. I'd say I'm in good company.
H/T to Alan
“The Second Amendment protects an individual right to possess a firearm unconnected with service in a militia, and to use that arm for traditionally lawful purposes, such as self-defense within the home.” Heller v. D.C. - June 26, 2008