SAN FRANCISCO (Reuters) -U.S. Republican Senator Tom Cotton has asked the Commerce Department to investigate Singapore-based Megaspeed for allegedly diverting Nvidia chips used for artificial intelligence, according to a letter seen by Reuters on Monday. The letter cites an October report in The New York Times that detailed the alleged diversion of Nvidia chips by Megaspeed, a cloud computing company. According to the report, Megaspeed funneled Nvidia chips to Malaysia and Indonesia that appeared to serve customers in China remotely.