60 Minutes did a two-part segment on this last year, if anyone is interested: http://www.cbsnews.com/video/watch/?id=7417242n http://www.cbsnews.com/video/watc

60 Minutes did a two-part segment on this last year, if anyone is interested: http://www.cbsnews.com/video/watch/?id=7417242n http://www.cbsnews.com/video/watch/?id=7417242n http://www.cbsnews.com/video/watch/?id=7417240n http://www.cbsnews.com/video/watch/?id=7417240n