On Dec. 8, Federal prosecutors in Texas unsealed documents that revealed an investigation into a massive smuggling network that stretched across the U.S. and the world. Dubbed "Operation Gatekeeper" by the feds, the investigation wasn't focused on drug smuggling or stolen goods but rather an alleged secret, underground network of suppliers for Nvidia's graphic processing units, or GPUs. Such chips are the backbone of the AI race, and can be used for military or civilian purposes. The government said a hidde ...