"I'm not sure he's thought this through, though. I would be more worried that someone would kill me in order to get the documents released than I would be that someone would kill me to prevent the documents from being released. Any real-world situation involves multiple adversaries, and it's important to keep all of them in mind when designing a security system."
Schneier's topic sentence for that paragraph could serve as my one-sentence evaluation of Snowden's deeds so far--he hasn't thought things through sufficiently. A longer commentary on Snowden
http://www.theaustralian.com.au/news/features/some-secrets-b...
is an Australian's words voicing some of my misgivings about Snowden's plan for revealing secrets and his aims and his methods.
I wish Snowden a long and healthy life (but I would like him back here in the United States to stand trial). I hope that the most sensitive secrets that he is in a position to disclose stay undisclosed, but I wouldn't bet that that will happen, whether Snowden is alive or dead. There are "multiple adversaries," for sure, and it's not clear that they all have the same incentives in this situation.