The anti-vaccine movement has been buzzing over a fraud investigation involving Poul Thorsen, a Danish scientist who co-authored key papers in 2002 and 2003 that found no link between childhood vaccines and autism. After discovering "a considerable shortfall in funding" involving a U.S. grant that Thorsen administered, Aarhus University in Denmark referred the matter to police. A Philadelphia Inquirer story from Friday quotes the senior and lead authors on the two papers saying that Thorsen's contributions were minor and he could not have skewed the results.