A man who stripped naked at an airport security checkpoint in Portland, Oregon, earlier this year to oppose airport screening measures has been found not guilty of indecent exposure. John Brennan was arrested and charged at Portland International Airport in April when he was pulled aside after going through a metal detector and a pat-down, prompting him to remove his clothes in protest. His actions came amid mounting criticism over airport security measures, including concerns over the health impacts of full-body scanners used in many airports. On Wednesday, a circuit court judge ruled Brennan’s action was one of protest and, in turn, protected speech.