Eighty years on from the atomic bombings of Japan, two renowned U.S. historians well versed in the history of nuclear weapons talked about long-standing questions such as why weapons of mass destruction were used on populations and why nuclear weapons have not been used since then. They spoke in separate recent interviews with Kyodo News senior writer Masakatsu Ota.William Burr, a researcher at a nongovernmental research institute, the National Security Archive at George Washington University, explored the history of nuclear threats from the atomic bombings to the present day, while Samuel …READ FULL ARTICLE