According to a Cellular Telecommunications Industry Association report roughly two trillion text messages were sent in the U.S. last year; that figure nearly doubles the number reported in 2009. In the past few weeks, texting drivers have caused deaths in Michigan, California, and Georgia, and to date, 33 states have outlawed texting while driving. The Takeaway asks whether text messaging really is as dangerous as critics say, and if so, is outlawing texting while driving the best solution? We speak with Daniel McGehee, research scientist and director of the Human Factors and Vehicle Safety Research Program at the University of Iowa.