50% of Americans don't believe in evolution

I wonder what the percentage of Europeans would be. Surely a lot higher, don't you think?

In this case it's a school superintendent protesting that the school biology exam doesn't refer to how the world was created according to the Bible (= creationism), but instead just refers to Evolution. http://latimesblogs.latimes.com/nationnow/2011/12/kentucky-evolution-challenge.html.

Apparently it's an ongoing controversy in the US.

Scary? Worrying?