http://abcnews.go.com/US/TheLaw/videotaping-cops-arrest/story?id=11179076
Rocah of the ACLU disagreed. “It’s not that recording any conversation is illegal without consent. It’s that recording a private conversation is illegal without consent,” he said. “So then the question is, ‘Are the words of a police officer spoken on duty, in uniform, in public a ‘private conversation.’ And every court that has ever considered that question has said that they are not.”