Dr. Ron Larsen of Liberty Calling.com (<a href="http://www.libertycalling.com">http://www.libertycalling.com</a>) joins Mark Dankof to discuss “A Simple, Verifiable Physics-based Explanation for the Collapse of the World Trade Center Buildings on 9/11 ."  Dr. Larsen has a doctorate in applied physics and materials science from Cornell University (1974) and is a paleoconservative based in Austin, Texas.