Nearly 100,000 lawless off-road racers congregate on the dunes near San Diego and pelt cops who try to calm them down with rocks.
"It's a real mess down there," a Forest Service ranger said. "We don't want to send any officers down there because we can't be sure they'd be safe." …
"We've put this in the frame of a forest fire or a natural disaster," said Roger Scott, a spokesman for the National Park Service…