Visit NHK World Japan for this article on the 63rd Pugwash Conference where scientists from around the world gathered in Hiroshima, Japan to chart a path toward a world free of nuclear weapons. The conference was Chaired by Iraqi nuclear chemist Hussain Al-Shahristani, "a man whose own life has been defined by the moral boundaries of science — and by the price he once paid for refusing to cross them." Dr. Jennifer Allen Simons, Founder and President of The Simons Foundation Canada, is a member of the Pugwash Council.