the documentary does is it talks who sidney farber was and his approach and huh he wrestled with the ethics of that. i think one of the many wonderful things about this documentary, it spot lights the. >> you take childhood leukemia 100% failed. he says why don't we poison these children? completely counterintuitive. we go into remission for a little bit. it goes off again. somebody else picks it up and says why don't we poison them with two different kind of poisons, and all of a sudden that 100% fatality rate is 90% cureage. >> right. >> he then pulls back. because he just can't ethically