at 8:30 eastern, 31 days that changed america and saved the world. and 9:20, pearl harbor christmas. at 10:15, fdr goes to war, how expanded executive power, spiralling national debt, and restricted liberties shaped wartime america. it s all this week on c-span 2. highlights from our weekend american history tv programs and prime-time. a look at african-americans in 18th-century and national sent and the 19th century with lani bunch and the descendants of african american families wh liveo and worked in washington d.c. now look at iran posing nuclear program. speaking about this was a former deputy director of the international atomic energy agency, also led the agency s efforts to dismantle nuclear proliferation networks. the gives a brief history of the program and where mr. day and lessens the international community can learn. iran and representatives of six of the world s leading powers are scheduled a new round of talks on april 13. good afternoon. welcome back to t