NSA's data mining and eavesdropping described

The March 10 Wall Street Journal contains a fairly detailed description of the data mining operation being run by the NSA. The program described is more data mining than eavesdropping, though it does involve the collection of transactional data like call detail records for telephone calls, and intercepted Internet data like web search terms and email senders and recipients. Also included is financial transaction data and airline data. I think most of this had already been pieced together, but this is a fairly comprehensive summary in one place. The WSJ story reports that leads generated from the data mining effort are then fed into the Terrorist Surveillance Program, which does warrantless eavesdropping. (An earlier version of this post incorrectly referred to the whole operation as the Terrorist Surveillance Program.)