Huajun Zhao, an associate researcher at the Medical College of Wisconsin, has been charged with economic espionage, accused of stealing research data and materials for a cancer-fighting compound, The Milwaukee Journal  reported. Zhao was arrested Saturday and remains held without bail. The charges are based on video of Zhao in a professor's laboratory and searches of his computer hard drive, where he had materials related to the research in question. Zhao also had plane tickets to China for use today. His lawyer told the Journal: "In this earliest stage of a complex case involving a talented professional accused of a serious crime, we look forward to rolling up our sleeves on Dr. Zhao's behalf."