eastern, golfing legend jack nik nicholas receives the congressional gold medal for his contributions to the game and community service. >>> on c-span2's book tv saturday night at 10:00 p.m. eastern on after words activist and author cornel west on the radical political thinking of martin luther king jr. >>> sunday at noon on in-depth our live three-hour conversation with former investigative reporter for "the washington post," and "new york times" best selling author, ronald kessler. he's written 20 books including "escape from the cia," "the since of the father quarterback," and "the first family detail." saturday at 8:00 p.m. eastern on lectures in history, charles calhoun on the obstacles faces and accomplished by ulysses s. grant on american history, historian patrick schroeder takes us on a tour of a courthouse in virginia, the site of the confederate surrender on april 16, 1865. >>> medical researchers update the senate aging committee on progress in developing a cure for alzheimer's. the effect of this on current treatments and the need for more funding to study the disease. w