Divine Strake was the official designation for a large-yield, non-nuclear, high-explosive test that was planned for the Nevada Test Site. Following its announcement, the test generated great controversy, centering on two issues: its potential value in developing a nuclear "bunker buster" warhead, and the possibility that the mushroom cloud generated by the explosion could carry large amounts of radioactive dust deposited at the Test Site over years of nuclear testing. On February 22, 2007 the Defense Threat Reduction Agency (DTRA) officially canceled the experiment.