In this Jan. 30, 2020, Harvard University professor Charles Lieber leaves federal court in Boston following his arrest on allegations he hid his involvement in a program designed to recruit people with knowledge of foreign technology and intellectual property to China. Lieber, former chair of the department of chemistry and chemical biology at Harvard, pleaded not guilty via videoconference on Tuesday, June 16, 2020, to lying about his ties to the Chinese-run recruitment program. (AP Photo/Charles Krupa, File) (Associated Press) **FILE**
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