Of course traffic accidents are available. But how much are they actually discussed. They are just statistics. Chernobyl victims, on the other hand, have become mythical in the public consciousness (possibly, by the way, precisely because of the obsfuscation and lies) and are "known" by everybody.

Chernobyl is a universal symbol of catastrophe and massive death. Cars are definitely NOT the symbol of a modern plague.

In the long run, we're all dead. John Maynard Keynes