Charles Seife, Pando Daily:

“The implications are clear. The NSA has abandoned half of its mission; it no longer feels obliged to help Americans keep their communications secure from outside attackers. Just the opposite. The NSA now feels that to fulfil its intelligence-gathering function, it must undermine the cryptographic security of American citizens and corporations. The NSA of the 1970s was trying to protect our digital infrastructure against exactly the kinds of attacks that the NSA of the 2000s is successfully carrying out again and again.”

This article helps put into perspective the magnitude of what has been revealed by the Snowden leaks.