One of the arguements Tony George put forth for oval racing was that it eliminated the multiple variables of a street or road course race. No sudden braking, no right or left turns, no walled race tracks on city streets, etc. Reality was and is, he ran an "oval", the main oval, and that is most of what he understood. He knew what the France family knew in that when you put it on a plate in front of the stands, the fans eat it up.
What he failed to recognize was the inherent danger of racing an oval...everything, the good and the bad is captured within itself. NASCAR has major incidents every weekend at speeds approximating those of the IRL. The drivers don't get injured or killed as often due to the construction of their cars. However, the IRL places drivers in reclining, carbon fiber tubes, complete with exposed rotating masses that will launch the errant pilot into the stands.
The IRL's safety record is pretty shaky. I won't question the skill of any of the drivers, but it does seem like there are more incidents where limited experience and poor judgement are a factor in someone's injury. No one will ever know what caused a driver to hurtle into another car so long after the incident, and if they did, the outcome will still be the same.
Another person with a future, a hope, a dream...someone loved by family, respected by many, and responsible to others is gone.