The leader of the city's rank-and-file police union has taken issue with Mayor Charlie Hales' recently declared interest in outfitting patrol cops with body-mounted cameras—raising concerns about the overall usefulness of the cameras, questioning the police bureau's diligence, and telling officers that any such program would first need to be hashed out with union brass. In a letter to his members, obtained by the Mercury, Portland Police Association President Daryl Turner enumerated 11 specific concerns/points,...