If you want to understand the intensifying showdown between the United States and Iran, consider the headline in The Washington Post on the threat of rapid nuclear proliferation: "Many Nations Ready to Break into Nuclear Club."
It highlights one of the dangers cited by those who favor military action against Iran. President Barack Obama says that if Iran gets the bomb, "other players in the region would feel it necessary to get their own nuclear weapons. So now you have the prospect of a nuclear arms race in the most volatile region in the world."
A plausible threat? It may sound that way. But it also sounded that way in 1981, writes Steve Chapman—when that Washington Post story ran.