So many of us do belt nowadays — nearly 82 percent in our state, on average. But the message isn’t getting through to everyone, especially in rural Virginia, where in some communities up to three-fourths of traffic fatalities involved unbelted drivers or passengers.In this Roanoke Times/roanoke.com special report, we explore why the disparities exist. We also retrace failed efforts to strengthen Virginia’s seat belt law and look at new initiatives to educate young drivers.