How many nuclear bombs have been exploded? Many people would say, "One, over Japan" when it fact it was two, one over Hiroshima and another over Nagasaki. Would you believe that Britain has exploded a nuclear bomb in the United States? Would you believe that in 53 years 2053 nuclear bombs were exploded around the globe? I find the following video unsettling. It left me feeling hollow in my chest and subtly angry.