During the Cold War, two physicists became public "opponents" of the Pentagon's antiballistic missile systems. But they kept doing private work on behalf of the administration's policy.

North Korea on Sunday launched what it claimed to be hypersonic missiles into the Sea of Japan in a firing drill. North Korean leader Kim Jong Un, who stated that nuclear deterrence is necessary due to the “recent geopolitical crisis and complicated international events,

Japan's Defense Ministry has announced that North Korea launched at least two ballistic missiles on Sunday morning.