Is Yellowstone in danger of being 'loved to death'?

Journalist David Quammen writes about the history of Yellowstone National Park and the conflicts in the greater Yellowstone ecosystem in the <a href="http://www.natgeo.com/yellowstone">May issue</a> of <em>National Geographic </em>magazine.
Journalist David Quammen writes about the history of Yellowstone National Park and the conflicts in the greater Yellowstone ecosystem in the May issue of National Geographic magazine.