Apparently a few speed limits around the U.S. have been quietly elevated in the past few months. In May the Governor of Indiana signed into a law a raise from 65 to 70 mph in areas with a population less than 50,000. At the end of June Texas declared that the maximum speed limit in that state would now be 80 mph. (Everything's big in Texas.) Finally, earlier this month Iowa decided to raise the speed limit on its rural highways from 65 to 70 mph. The state embedded sensors in some of these highways and learned that drivers' speeds were averaging 69.8 mph. Some Iowans may believe that by raising the speed limit to meet the velocity of speeders, the state is stepping out onto a slippery slope. We can dream, can't we?