President Donald Trump signed an executive order on oversight of artificial intelligence Tuesday, less than two weeks after postponing a White House ceremony over his concerns that a similar policy could dull America’s technological edge.The order establishes a framework for the federal government to vet the national security risks of the most advanced AI systems for up to a month before their public release. Participation by AI developers would be voluntary, the order says.“Advanced AI capabilities make our Nation stronger, but also introduce new national security considerations that require coordinated action across executive departments and agencies,” the order says.It was…