Idiotic and Craven Vandals in National Parks

The graffiti appears to be gang tags, so it is probably some people from a metro area realize that national parks don't train cameras on them 24/7, so they feel like they can destroy things since they likely won't be caught.

I have a feeling that this is going to be used to get more parks and such closed to the general public. It won't stop the hoodlums because they don't care about "No Trespassing" signs.