evidence: Charles Lieber, 62, the former chair of Harvard's department of chemistry and chemical biology, had pleaded not guilty to two counts of filing false tax returns, two counts of making false statements, and two counts of failing to file reports for a foreign bank account in China. [...] Prosecutors argued that Lieber, who was arrested in January, knowingly hid his involvement in China's Thousand Talents Plan — a program designed to recruit people with knowledge of foreign technology and intellectual property to China — to protect his career and reputation. [...] Lieber has been on paid administrative leave from Harvard since being arrested in January 2020.