Gerald Posner discusses his eighteen month investigation of 9/11. He explains why he believes American intelligence failed to prevent the attacks, Why America Slept: The Failure to Prevent 9/11. Editor Paul Zakrzewski, contributor Nathan Englander and author Aryeh Lev Stollman discuss the new anthology of contemporary fiction that explores Jewish culture, Lost Tribe. Then, Alison Leslie Gold discusses her book Fiet’s Vase, a collection of personal accounts from individuals who survived the Holocaust. And Edwin Black looks into eugenics, the controversial practice of forced sterilization in the early 20th century, War Against the Weak.