Racing at Daytona and Talladega, the only two tracks in NASCAR that require the use of horsepower-sapping restrictor plates to slow the cars, simply is what it is. NASCAR is in the same position and went to work Monday studying the wrecks to see what can be altered to keep cars from lifting off the track. ''We never want to see cars get up in the air,'' Steve O'Donnell, NASCAR's chief racing development officer, told AP. More...