Director Clapper signed a change in IC policy to help protect critical national security information from unauthorized disclosure. (ODNI photo)
Read part 1 (Infuriated, Clapper outlines steps to catch leakers)
Read part 2 (Lie detectors, intense scrutiny ahead for suspected leakers)
Read part 3 (What Clapper doesn't know keeps him up at night)
Listen to select audio clips:
July 11, 2012
Clapper concerned about nightmare scenario
June 26, 2012
Tracking leaked classified information
Intel leakers will be turned over to Justice Dept
June 26, 2012
People outside intel community have access to sensitive info
Clapper says changes are coming to stop leaks