US State Department Spokesperson Matthew Miller on Monday expressed concerns and said that China has restricted the sale of Micron Chips in certain domestic industries. "We have very serious concerns that China has restricted the sale of Micron Chips in certain domestic industries," Miller said as Beijing imposed a ban on US chip maker Micron from selling to Chinese companies working on key infrastructure projects. As the tussle of power continues between the US and China over technology, the Cyberspace Administration of China (CAC) on Sunday announced that the US chip firm failed a cybersecurity evaluation, hence the restrictions. Calling...