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CBS Sunday Morning with Charles Osgood: Let There Be Light 12/18/11

Morning Cover Story, Lee Cowan reports on the debate between the warm glow of the watt-sucking incandescent and the energy efficient LED.  This segment features: Dr. David DiLaura; Ed Crawford; Daniel Blitzer; and Howard Brandston.  Watch the video.

http://www.cbsnews.com/video/watch/?id=7392058n&tag=contentMain;contentBody