Just about everybody on the Metro Police force has heard of Tim Farrell, and he sometimes gets mistaken for a law enforcement officer. Farrell is simply a 29-year-old wireless Internet engineer — and a gun rights crusader. He is one of what appears to be a growing number of people taking up the "open-carry" cause, advocating a constitutional right to openly carry firearms. "The open-carry movement has gained momentum over the last four or five years because people... (GunPolicy.org)