and that's when juliet and walter jacobs sat down for their first meeting with dr. potti. our permission. >> potti: absolutely. that's a good thing, because you're going to miss a lot. >> pelley: the jacobs' were told, based on the research, that the chances of finding the right drug were approximately 80%. walter jacobs says no one mentioned that the clinical trial had been suspended because of so many questions. >> potti: i will help you. trust me. >> pelley: many trusted because dr. potti's work had been vindicated. but there was just one more thing, discovered not by a scientist, but by paul goldberg, the editor of a small independent newsletter called "the cancer letter." goldberg got a tip from a confidential source-- "check dr. potti's rhodes scholarship." it was right there on his applications for federal grants. trouble was, it wasn't true. you asked him about it? >> nevins: certainly, i asked him about it. >> pelley: what did he say? >> nevins: he said that, while it wasn't the rhodes scholar as we know the rhodes scholar, it was a fellowship from australia from a

when robert kennedy, jacob javits, walter mondale, went down to california and florida to look into hunger, they got a lot of coverage on that. they were shining a spotlight on these issues. george mcgovern and bob dole worked on hunger for years together on a bipartisan basis. they shown a spotlight on issues, and because of who they were, it moved the country and it moved the legislative process. it's harder to break through now. >> because of so much noise? >> so much noise. so much noise. >> let me get back to an issue which i consider to be enormously important. a lot of folks inside the beltway especially focus on the institution of the senate, which is by definition fascinating. 100 people, different personalities, different states, different political compositions and makes for an interesting dynamic. but i personally believe that what is far more important is the relationship between what goes on in the senate and the needs of the american people. theoretically you could have a wonderful senate, bright people, they all love each other, all get look and the country goes to hell. th