A block from the famous OK Corral of cowboy outlaw history, retired police officer Bob Harbster has some advice for the Arizona sheriff investigating the Tucson shooting of a congresswoman and 19 others and who is raising the prospect of gun control: Wise up. "As far as I'm concerned, if you're not carrying a gun, you are a potential victim, from crazies like this little fool up there yesterday," Harbster said on Sunday as he walked down the historical dirt and timber... (GunPolicy.org)