If this is a repost forgive me. Thought it was interesting.
http://www.pbs.org/wgbh/pages/frontline/video/flv/generic.html?s=inwi10s22a3q81f
Enjoy
http://www.pbs.org/wgbh/pages/frontline/video/flv/generic.html?s=inwi10s22a3q81f
Enjoy