HomeGlobal nuclear arsenal to grow for first time since Cold War – think-tankFILE PHOTO: Handout of a mushroom cloud rises with ships

FILE PHOTO: Handout of a mushroom cloud rises with ships

FILE PHOTO: A mushroom cloud rises with ships below during Operation Crossroads nuclear weapons test on Bikini Atoll, Marshall Islands in this 1946 handout provided by the U.S. Library of Congress. REUTERS/U.S. Library of Congress/Handout via Reuters/File Photo