Some details on warrantless wiretapping

I don't know how the "classified" side of these lawsuits against the telecoms are going to break down, but I think they may offer the best glimpses of what was/is really going on in the NSA warrantless spying.

AT&T provided NSA eavesdroppers with full access to its customers' phone calls, and shunted its customers' internet traffic to data-mining equipment installed in a secret room in its San Francisco switching center, according to a former AT&T worker cooperating in the Electronic Frontier Foundation's lawsuit against the company.