In a new report, Ending the U.S. government’s war on medical marijuana research, researchers at the Brookings Institution call on the federal government to eliminate roadblocks to medical marijuana research in the U.S. "The federal government is stifling medical research in a rapidly transforming area of public policy that has consequences for public health and public safety," authors John Hudak and Grace Wallack, say. "Statutory, regulatory, bureaucratic, and cultural barriers have paralyzed science and threatened the integrity of research freedom in this area."