43,000 people are killed in auto accidents in the U.S. every year. I bet that there hasn't been 4,300 people killed in amusement parks over the last 100 years. I'm not suggesting they do this (the speed limit), but if you dropped the speed limit 10 mph and took all horse collars out of coasters, you would save hundreds of lives and probably none of the deaths would come from coasters anyway.