A former Iowa State University researcher who admitted last year that he faked data to make it appear an experimental AIDS vaccine was working could spent time in a federal prison. Dong Pyou Han has been charged with four counts of making a false statement. His jury trial is scheduled to start September 2nd in federal court.

Prosecutors say Han spiked the blood of rabbits with components of human blood to make it appear the AIDS vaccine was working. His false data was reported to the National Institutes of Health, which had provided $19 million for the research. Han resigned from ISU last October. He faces up to 20 years in prison and a fine of a quarter of a million dollars if convicted on all four counts.