1.   One slip, and several cars can be taken out in a major wreck.

2.   There were plenty of sloppy moments at Indy, including spins by the rookies Mark Dismore and Paul Durant that could easily have triggered major wrecks.

3.   It was the second major wreck in five years in the race for Earnhardt, a driver known for his aggressiveness on the track.

4.   It was the second major wreck in five years in the race for Earnhardt.