since the invention of the nuclear bomb there have been more than 50 incidences of viable nuclear weapons being lost. most are in the depths of the sea on nuclear subs, ships or aircraft that have been lost, there are also at least 26 nuclear reactors missing also on ships or subs. this is a conservative estimate since we have no knowledge of the other nuclear powers (incidents). there is a term for the loss of a nuclear weapon, hence my tag (Broken Arrow) There are 129 obsolete russian nuclear submarines tied up at various ports throughout russia which the russians cannot afford to decomission. someday the sea will glow. There are 8 known nuclear states, USA, UK, FRANCE, CHINA, RUSSIA, INDIA, PAKISTAN, N. KOREA, ISRAEL. iRAN AND SAUDI ARABIA are suspected of having or known to be developing nuclear weapons. the ozone layer wont get a chance to fry us we will do it ourselves.