President Trump’s post raises technical questions about how and if the United States could “immediately” return to nuclear testing, and political considerations about the signaling behind nuclear testing and who would benefit most from a return to testing.

The nuclear weapons testing ordered by U.S. President Donald Trump will not involve nuclear explosions at this time, Energy Secretary Chris Wright said on Sunday.

After the end of the Cold War, the US nuclear arms control policy has undergone periodic fluctuations, but on the whole, it is still dominated by conservative forces not averse to fighting a nuclear war.