From the team that brought you Blackwater and the pre-9/11 counterterrorism program Able Danger comes “Jellyfish Intelligence.” That’s the name a group of former US intelligence officials and executives from the controversial security firm have chosen for a new private outfit that offers “predictive intelligence” for Fortune 500 corporations and senior-level executives and that aims to “protect human lives and their business interests throughout the world. The company blends traditional models of a strategic consulting firm with what it claims is an extensive network of human sources—people who, in an official context, would be called spies. Jellyfish employs a network...