Crypto mining rigs from Chinese manufacturer Bitmain are being investigated by the U.S. Department of Homeland Security (DHS) due to potential risks to U.S. national security. According to Bloomberg, the federal government launched an investigation, “Operation Red Sunset,” to determine whether Beijing can access these mining machines remotely and use them for cyberespionage or to sabotage the power grid. As part of this probe, the government intercepted some of Bitmain’s imports, dismantled the…