In 1963 John Kennedy and Nikita Khrushchev signed the ban on atmospheric

nuclear weapons testing, which was extended to a moratorium in 1992 and secured as

the Comprehensive Test Ban Treaty in 1996. The Treaty has been signed by 187

states. On October 31 st , United Nations member states voted on a resolution in support

of the Treaty and the global nuclear test moratorium. The United States was the only

“no” vote.