Historian of nuclear weapons and secrecy, Dr. Alex Wellerstein, discusses the atomic bombings of Hiroshima and Nagasaki. Specifically, the conversation focuses on the high level, and highly classified, debates over how best to employ these new weapons. From there, the episode segues into the inherent difficulties of doing historical research on classified materials and how that has shaped the historiography of the bombings. (75min)

Dr. Wellerstein is the author of Restricted Data: the Nuclear Secrecy Blog, where his NUKEMAP can also be found (among many other items of note). He and his work have also appeared NPR, FOX News, and The Daily Show, as well as in The New Yorker, where his article, "Nagasaki: The Last Bomb," can be found.