http://knowledge.wharton.upenn.edu/audio/KW_Subprime_Siegel.mp3 Jeremy Siegel on Ignoring Risks -- Subprime Special Report http://feedproxy.google.com/~r/KnowledgewhartonInterviews/~3/zruTAg07E-s/KW_Subprime_Siegel.mp3 2008-06-20 http://www.wharton.upenn.edu/globals/images/katw_white_itunes.gif