Contact: Kevin Krajick
The Earth Institute at Columbia University
Caption: Paul Richards, a seismologist at Lamont-Doherty Earth Observatory, discusses the greatly expanded capabilities of instruments able to detect clandestine nuclear tests.
Credit: Courtesy Comprehensive Test Ban Treaty Organization
Usage Restrictions: Use this image to link to the video on YouTube: http://www.youtube.com/watch?v=RpyF5T6W-Z0
Related news release: 2010 Korea bomb 'tests' probably false alarms, says study