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Popular iphone, for example can snoop on your every move, in many cases without your knowledge. james rosen is doing some snooping himself. he is live in washington with more. >> reporter: of the legal variety. it happens with stkpwupbs, gunsd broadcasting. this is the first every hearing of a judicial subcommittee on privacy, technology and the law. this is the latest american attempt to build a legal, moral and ethical infrastructure around a technology that has surged so fast lawmakers have t...