Speed kills, especially since 1995. That’s when the federal law mandating a 55 mph speed limit in every State was revoked. Now, researchers at the University of Chicago have found that ever since each State has been allowed to set its own speed limits there has been a dramatic increase in deaths. About 12,500 people died between 1995 and 2005 in car crashes, proving that policy makers need to rethink speed and road safety in the U.S. Besides lowering speed limits, the researchers suggest setting up speed camera networks, which exist in England, France and Australia and have drastically reduced the number of auto accident deaths. The findings are published in the September issue of the American Journal of Public Health.