Fruit of Eavesdropping Was Processed and Cross-Checked With Databases

By Walter Pincus

Information captured by the National Security Agency's secret eavesdropping on communications between the United States and overseas has been passed on to other government agencies, which cross-check the information with tips and information collected in other databases, current and former administration officials said.

http://www.informationclearinghouse.info/article11428.htm