On May 25, nine US non-proliferation experts sent an open letter to Prime Minister Trudeau expressing concern that by “backing spent-fuel reprocessing and plutonium extraction, the government of Canada will undermine the global nuclear weapons non-proliferation regime that Canada has done so much to strengthen.” India exploded its first nuclear weapon in 1974 using plutonium extracted from a “peaceful” Canadian nuclear reactor given as a gift many years earlier. Several years after the Indian explosion, the US Carter administration ended federal support for civil reprocessing of spent nuclear fuel in the US out of concern that making plutonium more available would contribute to the proliferation of nuclear weapons.