EFF: "Everything we know about NSA spying" from 30C3:
The Electronic Frontier Foundation's Kurt Opsahl -- a brillliant digital civil liberties attorney who has been suing the US government and the NSA over spying since 2006 -- took to the stage at the 30th Chaos Communications Congress in Hamburg this week to explain in clear and simple language the history of NSA spying. Kurt lays out the tortured legal history of American bulk surveillance, showing how an interlocking set of laws, policies, lies and half-truths have been used to paper over an obviously, grossly unconstitutional program of spying without court oversight or particular suspicion.
If you're mystified by the legal shenanigans that led up to the Snowden and Manning leaks, this is where you should start. And even if you've been following the story closely, Opsahl gives badly needed coherence to the disjointed legal struggle, connecting the dots and revealing the whole picture.
30c3: Through a PRISM, Darkly - Everything we know about NSA spying