SAN FRANCISCO — The Phantom MK-1 looks the part of an AI soldier. Encased in jet black steel with a tinted glass visor, it conjures a visceral dread far beyond what may be evoked by your typical humanoid robot. And on this late February morning, it brandishes assorted high-powered weaponry: a revolver, pistol, shotgun, and replica of an M-16 rifle. “We think there’s a moral imperative to put these robots into war instead of soldiers,” says Mike LeBlanc, a 14-year Marine Corps veteran with