The Defense Department's policy governing human control of autonomous weapons systems has not been updated in more than three years, even as the Pentagon's adoption of autonomy technologies has accelerated, prompting department officials to tell congressional lawmakers they plan to address the issue. Emil Michael, under secretary of defense for research and engineering, told a Senate panel Tuesday that Defense Department Directive 3000.09 -- the only policy the Pentagon has to place guardrails on the use of artificial intelligence and...