premise: The head of the UN nuclear watchdog agency Mohamed ElBaradei Saturday received the 2005 Nobel Peace Prize and called for a world free of atomic weapons, saying existing nuclear states should lead by example.
  "If we hope to escape self-destruction, then nuclear weapons should have no place in our collective conscience, and no role in our security," ElBaradei said in his acceptance speech at a ceremony in Oslo's City Hall.
  "We must ensure, absolutely, that no more countries acquire nuclear weapons: that nuclear weapon states take concrete steps towards nuclear disarmament; and we must put in place a security system that does not rely on nuclear deterrence," he added.
  ElBaradei and the International Atomic Energy Agency (IAEA), represented by the chairman of its board of governors, Yukiya Amano, were jointly honored on Saturday for "their efforts to prevent nuclear energy from being used for military purposes".
  They received their distinction from the chairman of the Nobel Committee Ole Mjoes 60 years after the United States dropped two atomic bombs on Hiroshima and Nagasaki in Japan on August 6 and 9, 1945, the world's only nuclear attacks.
   What might happen if existing nuclear states lead by example according to ElBaradei?
hypothesis: escape self-destruction