Edward Snowden will get a fair trail even though he does not deserve one. There are millions of Americans that have absolutely no clue what is going on in the world. They don't watch the news. They only know what goes on in their small part of town. These people will be on the jury which will allow him a fair trial.
Given the amount of media attention to Ed Snowden from both sides of the aisle and debate, I find it hard to fathom that his trial would be fair and not have biases. Everyone in the world has heard of this guy and too much time has passed and just about everyone has an opinion.