A Wyoming microbiology graduate student from China has been arrested on accusations she poisoned the tea of a colleague who had pending patents, then tried to flee the U.S. after police questioned her. Aili Wang, 32, was arrested Oct. 6 at Los Angeles International Airport, where prosecutors allege she sought to return to China. With her were "multiple" laptops, electronic storage devices and documents now in the possession of police. Investigators say Wang was seen on surveillance video rummaging through the desk of the alleged victim, who specialized in technology for disease treatment — research similar to work Wang had...