Missouri law bans texting while driving -- but only for novice drivers (those under age 21). This relatively lax ban is put in perspective when we consider most of Missouri's neighboring states. Nebraska, Kansas, Arkansas, Tennessee, Kentucky, Illinois and Iowa all ban texting while driving for all drivers, regardless of age.
While distracted driving can take many forms -- for example, eating, grooming, talking to passengers, changing CDs -- texting while behind the wheel is particularly alarming because it requires the driver's attention on multiple levels: manual, visual and cognitive. You need all of these faculties to operate a motor vehicle safely.