In the last two years, Philadelphia police have confiscated guns from at least nine men - including four security guards - who were carrying them legally, and only one of the guns has been returned, according to interviews with the men. Eight of the men said that they were detained by police - two for 18 hours each. Two were hospitalized for diabetic issues while in custody, one of whom was handcuffed to a bed. Charges were filed against three of the men, only to be withdrawn by the District Attorney's Office. The civil-rights unit of the City Solicitor's Office...