North Korean Foreign Minister Ri Yong Ho warned reporters in New York that his country may place a live nuclear warhead on one of its missiles, launch it, and then detonate the bomb in the open air.
It would not be the first time a country conducted such a test. The Soviet Union did it in 1956, The United States did it in 1962. But perhaps the most relevant historical precedent is the Chinese test in 1966. Read more >