>> i saw traffic, and i stopped, and i was upside down in the vehicle. >> this morning there are new questions about whether roper may have fallen asleep behind the wheel. the crash hits close to home for those trying to change the rules about when truck drivers are allowed to take breaks on the road. let's bring in cnn aviation and government correspondent analyst rene marsh who has more on that side of the story. >> good morning, carol. this situation regarding this accident over the weekend highlighting the debate happening here right here on capitol hill. it specifically looks at truck drivers' rest rules. we do know on capitol hill some republicans and democrats say they want to see a portion of the current rules changed. this is all about preventing sleepy truckers from driving 80,000 pound trucks on the roads we all drive on. the debate all boils down to how many hours and which hours truck