Nuclear shutdown

Donald Trump ordered the U.S. military to immediately restart the process for testing nuclear weapons after a halt of 33 years, a move that appeared to be a message to rival nuclear powers China and Russia.
Russia has responded to U.S. President Donald Trump ordering the Pentagon to resume nuclear weapons testing "on an equal basis" with Russia and China.
China said it hoped the US would fulfil its obligations under the Comprehensive Nuclear-Test-Ban Treaty - which both countries have signed but not ratified - and honour its commitment to suspend nuclear testing.
The world hopes reason will prevail...