Thing is that Snowden isn't really a figure I think most people would listen to. I think he's cut off from any valuable information that would offer him anything groundbreaking to reveal and I think he's probably somewhat isolated in his current situation.
Edit: really? You downvoters just Snowden fans? Care to actually offer up a reason you think my comment isn’t right? Snowden is hiding out in a foreign country that has to keep him at arm’s length, trot him out when he’s useful, but not offer him access to anything actually important.