New charges against Huawei and four of its subsidiaries come as US authorities consider ratcheting up export controls on the Chinese networking hardware giant
Huawei accused of systematic intellectual property theft practices going back years
Levandowski is accused of downloading nearly 14,000 files from Waymo servers before quitting the company for a rival in 2016
William Yao could face up to ten years in prison if convicted - if he returns from China