Maybe we should tighten up a lot of sports based on your comment?

Running?  Bear attacks and killings.
Bikes?  Multiple injuries and deaths, sometimes from cars.
Boxing, football, soccer, hockey, basketball and baseball?  Injuries and sometimes deaths.
Race cars? Air shows? Bad, bad, bad. 

We might as well stop workers from working.  Lots of industrial accidents every year in the US and the world, with injuries and deaths.

Would those be a good start? 

To everyone that hates the Iditarod and loves animals.  Get your butts over to an animal shelter and start saving some of the thousands of animals abandoned and killed every year.