A young Chinese scientist who’s been in jail for three months will be returning to China. A judge in Detroit says no additional jail time is necessary for Chengxuan Han. She pleaded no contest to illegally shipping biological material to the U.S. before arriving for a job at the University of Michigan. The material wasn’t hazardous, but the government says the packages were not properly labeled and that Han didn’t have approval to ship them. Han says it’s been a “very painful” lesson and that her career is “destroyed.”