John Cochran; Leonel Fernandez Reyna; 'The End of Science'; David Mixner

A conversation with John Cochran about his coverage of the Bob Dole campaign and welfare reform; Dominican Republic President Leonel Fernandez Reyna discusses his plans to modernize and develop his country while he's in office; Astrophysicist Jeremiah P. Ostriker, journalist Michael Lemonick, and science writer John Horgan discuss Horgan's book, "The End of Science: Facing the Limits of Knowledge in the Twilight of the Scientific Age"; David Mixner introduces his memoir, "Stranger Among Friends," about his life as a gay politician in the '90s.