PHOENIX — A licensed gun dealer in Arizona who was cooperating with federal agents in a gun smuggling probe told investigators that he was worried that firearms sold by his store could end up in the wrong hands. The dealer's concerns are contained in a letter that Republican Sen. Charles Grassley of Iowa wrote on Wednesday to U.S. Attorney General Eric Holder as part of Grassley's inquiry into efforts to combat gun smuggling into Mexico. The Associated Press obtained... (GunPolicy.org)