Irving Weissman; 'Intolerable Cruelty'

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Monday 10/06/2003

Stanford biologist Irving Weissman explains what stem cells are, why they're important in treating disease, and the political and ethical issues around harvesting them from embryos. Joel Coen, Ethan Coen, George Clooney, and Catherine Zeta-Jones introduce their screwball comedy, "Intolerable Cruelty," starring Clooney as a slick divorce lawyer and Zeta-Jones as a serial divorcee.