Masako Wada urged policymakers around the world to 'take the leadership ... toward human society free of nuclear weapons.' ...

Nuclear deterrence “cannot save humanity,” a senior member of a group of hibakusha atomic bomb survivors in Japan, said in a video speech at a meeting of scientists in Chicago on Wednesday.

Author and historian Iain MacGregor profiles a diverse range of players in his latest book about the first atomic bomb used in warfare.