Holy shit that was a bad choice for many reasons. I can't think of a worse place to go, other than Russia or Iran with respect to the intense desire of those nations to extract as many secrets about NSA capabilities as possible. These are the most secret of the secret capabilities of US intelligence. He even boasted that he knows many more secrets that he himself took care to censor unlike Bradley Manning. I think China will be very interested in hearing those redacted snippets.
Secondly, if he ends up revealing sensitive information to these countries, any sympathy from the US population will turn into calls for frying him as a traitor. Going to China makes him into a Rosenberg.
This guy doesn't seem very smart at all. And using pillow cases and shields over screens to stop the NSA? You're telling me this guy doesn't know what TEMPEST is? Didn't he see Gene Hackman in Enemy of the State? You need a Faraday Cage.