“In a case that would appear to raise First Amendment questions, a Mesquite, Texas, woman has been arrested and charged with a felony after she allegedly posted a photograph of an undercover narcotics officer on Facebook and identified him as a narc. Melissa Walthall, 30, was charged with felony retaliation after Mesquite police deemed her post ‘a viable threat to the officer’s safety.’ The photo was copied from the officer’s own Facebook page.”
http://stopthedrugwar.org/chronicle/2012/oct/16/texas_woman_jailed_outing_narc_f
