Welcome to this Issue of National Security Science
- Managing Editor
- Clay Dillingham
In 1992, the nation made a decision to forgo full-scale underground nuclear weapons testing: after conducting more than 1,000 tests since the end of World War II. However, under Presidential Decision Directive 15 (1993) there is a legal requirement to be able to execute a test within 24–36 months if required. In a national emergency, could the United States safely test a nuclear weapon tomorrow?