So he knows that this is what you are willing to say publicly and this is just what you consider the "tip" of the information iceberg you are not willing to speak of just yet. Everything you speak of makes him a loose chain and honestly, what you know makes him a liability to bigger fish.
A/B or C is not turn yourself in and go to jail or kill yourself. It's turn yourself in and go to jail or those who promise you security will kill you. Arkancide style.
If snowden decides to be a good little clown and turns himself in and maybe if he coughs up everything he knows he just might not have to worry about dropping the soap. Oh wait no that would be a deal and we don't do deals.