In a remote teleconference by a high tech bot, Edward Snowden gave a talk in British Columbia about the issue of government surveillance.
He covers the huge issues surrounding the NSA/GCHQ scandal and how important the trajectory of surveillance is for weaponizing the internet.
He talks about the traditional dual mission of the NSA, and how the balance of attack and defense is significantly skewed toward attack. He also talks about the specifics of Prism and how Prism is about full content, not just metadata.
The full TED Talk can be viewed here: http://www.ted.com/talks/edward_snowden_here_s_how_we_take_back_the_internet