The National Security Agency (NSA) has collected large volumes of phone and Internet traffic that has crossed into or out of the United States in an eavesdropping program much more extensive than acknowledged by the Bush Administration, according to a New York Times article published on Friday.

In what has been described as a large data-mining operation, NSA analysts have allegedly gathered large amount of routing information from network data and e-mail messages in search of patterns that may aid terrorism investigations, the New York Times reported.