One Baltimore institution stands at the nexus where artificial intelligence and advanced robots meet the U.S. president's power to wage war unchecked: the Johns Hopkins University's Applied Physics Lab, a sprawling complex of buildings and fields in Laurel where 5,000 engineers and scientists toil on top-secret weapons projects. It is there that the swarming drone technology and "unmanned aerial systems" of tomorrow are being developed, at a cost of hundreds of millions of dollars, on a nonprofit basis on behalf of the for-profit corporations that supply our soldiers and sailors. It is fascinating work, according to the lab's website. But the details, of course, are mostly classified. We're sure all this stuff will work flawlessly.