NSA chief defends snooping, faces hecklers

The National Security Agency's controversial intelligence-gathering programs have prevented 54 terrorist attacks around the world, including 13 in the United States, according to Gen. Keith Alexander, NSA director.



via CNN.com - Technology http://rss.cnn.com/~r/rss/edition_technology/~3/G1fQBgFwgT0/index.html