In the 50's-70's era, there where many drivers hurt and killed, even though there where much fewer drivers racing and the speeds where slower.

Today; drivers are hurt, but few are killed. I would also believe that far fewer drivers are hurt although there are many many more drivers competing today.

That said, it is tough when drivers are hurt. At the end of the day, this is still a very dangerous game and will always be no matter what safety improvements are made.

The injuries and casualties of the past have lead to the developments today that keep drivers safer and we will learn from today to make tommorrow better.