joseph nevins. the nevins lab had built a reputation for important work. dr.dr. potti, and he chose the young researcher to mentor and support. >> dr. joseph nevins: very bright, very smart individual, very capable. he was a very close colleague to many, many people. >> pelley: and to you. >> nevins: and to me. >> pelley: when dr. potti decoded the genetic makeup of hundreds of tumors, the research created huge computer files of data. that data was the underlying proof in research papers under the names of potti and nevins that were a sensation in the top medical journals. >> kevin coombes: it was going to change medicine. it was going to change how we treat patients. >> pelley: doctors everywhere were eager to save lives with the new discovery. at m.d. anderson cancer center in houston, kevin coombes and keith baggerly began analyzing dr. potti's data to verify his results. and as you dug into the data, what did you find? >> keith baggerly: we started some basic processing, and we noticed some things that were really odd that we just couldn't explain. >> pell

in a justifiably famous exchange, alan nevins praised douglas southhall-freeman after reading the first two volumes of the magnum opus. yet, he was quick to add a qualifier. i wonder if you think it's a little bit disagreeable. he is not a likable young man. he was too much a careerist, even too much an egoist. freeman conceded the point but with a critical caveat, telling nevins the great fact is that washington grew. freeman was particularly struck by the transforming impact of the 16 years between washington's marriage in 1759 and his summons by congress to command a rag tag essentially regional force purporting to be but the ingredients of growth were present from his earliest years. to be sure, young washington was a socially awkward aspirant to the colonial gentry, brave to the point of brashness, touchy where his honor was concerned. unsophisticated in matters of love. but even then he carried with him the seeds of sacrificial leadership. pregnant with character, this is washington at 22. the first of those three astonishing life-like figures. of washington, which anchored the ex

kudos to showtime and david nevins for taking it up. tavis: sunday nights at 8:00 p.m. on showtime. any night on showtime. that is the beauty of these premium cable networks. if you are fortunate not to have them or have you. these things air all day. you can catch them any time. >> we county -- count the dvr's. that counts too. tavis: "house of lies" on showtime. that is our show for tonight. until next time, keep the faith. >> for more information on today's show, visit tavis smiley at pbs.org. tavis: hi, i'm tavis smiley. join me next time for a conversation with comedy legend and best-selling author steve martin on his next book. that is next time. we will see you then. >> every community has a martin luther king boulevard. it's the cornerstone we all know. it's not just a street or boulevard, but a place where walmart stands together with your community to make every day better. >> and by contributions to your pbs station from viewers like you. thank you. >> be more. pbs.

. >>> look we have a great one going tonight, nevin shapiro used cold cash, hot women