SummaryCompaniesTrackers used to detect illegal AI chip diversion to China, sources sayTrackers found in Dell, Super Micro shipments containing Nvidia, AMD chips, sources sayChina criticizes US export curbs, tracking proposalsSINGAPORE/NEW YORK, Aug 13 (Reuters) - U.S. authorities have secretly placed location tracking devices in targeted shipments of advanced chips they see as being at high risk of illegal diversion to China, according to two people with direct knowledge of the previously unrep...