A medical researcher and professor who had been working most recently at Ohio State University is facing federal charges in what prosecutors say was a sophisticated scheme to transfer U.S.-backed research to China. Song Guo Zheng, 57, of suburban Hilliard, and his research groups secured more than $4.3 million in grants from the National Institutes of Health for projects while receiving overlapping funding from the National Natural Science Foundation of China, according to a criminal complaint unsealed Thursday in Columbus. Zheng worked in the division of rheumatology and immunology at OSU's Wexner Medical Center. When he was hired last year,...