Did Edward Snowden risk everything for nothing? It certainly seems that way, since his shocking revelations about the NSA haven’t changed anything for the better. In fact, while Snowden continues to hide from the White House, the NSA continues to grow in power. This TED talk from a computer cryptographer should make all of us who care about freedom and privacy very concerned indeed.

Matthew Green explains how the NSA is collecting personal address books and buddy lists and plans to gain full access to skype, cellphone conversations and all emails by ending encryption. Encryption dates back to the Founding Fathers and the Bill of Rights. Now, the United States National Security Agency is breaking and undermining core encryption technologies that power the Internet, saying it’s being done for our own protection from terrorists. But is it? Green doesn’t think so.

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