Absolutely! He is guilty of treason and the legalized form of violence could come upon him any time they could physically pass through another kind of the legalized form of violence without a violence being imposed upon them in a very legal way. But, personally, Snowden has my approval of being a traitor under the specific circumstances as being delivered to us by the media (which might, by the way, be all lie). Having said that, I personally think Snowden's actions were not mature and I would not do that if I were him. He believed that by exposing the simple fact that the statesmen are criminal he would do his people a favour and that, I think, is childish. At the best, these criminals would be replaced by another criminals who are just looking for a chance to take over the power. The consequences of those actions to the ordinary people who just want to live their lives are either bad or nothing.