if he was a true patriot as he claims he'd have faced the music
Oh come on, what the hell is patriotic about being shoved in an oubliette some place, after a show trial where you can't present any evidence because everything is classified?
Snowden would never get anything resembling a fair trial before a jury of his peers. A show trial is the most he could hope, but its just as likely he'd be held pretty much indefinitely without trial on some flimsy constitutionally unsound national security pretext. If you want to know who the cowards are its Kerry, Clapper, and Alexander who want to burry him or avoid tackling his criticism with lies and indirection rather than confronting it with actual facts.
Going through the system, and there is evidence he did try does not work. Just try filing and FOIA request about anything that is connected to "terrorism" in their wildest imaginations (like animal rights) and see what happens. The first time you will probably get a nice letter back telling you: "they can't tell you why they can't tell" you what you wanted because 'national security'. Send a another request for ANY information on how they handled your first request and they will probably just stonewall. Which is ILLEGAL the law say they have 20 days to do something and the three letter agencies won't do that.
Statistically you are more likely to die falling out of bed than you currently are from any kind of terrorist attack. Logic would then dictate at the very least we would create a "Bedtime Safety Authority" to make sure we are all tucked in at night before investing more in counter terrorism and yet we keep allocating more and more federal to that; well that is what the NSA tells us they are doing with them anyway preventing terrorism. Then we also dump more money into policing while crime nears all time lows, and yet no recruitment fliers for the BSA are there to be found.
There are no good reasons for these people to be doing what they are so they instead just want to silence critics like Snowden. No Snowden is no coward he is the guy that gave up home, family, and a cushy job in paradise to keep this issue alive.