When the bears over run Yellowstone what are they going to do, send some to the Badlands?
Change the tires on the famed mountain lion trailer boys, time to move some grizzlies! I would suggest just floating a barge down the Yellowstone and releasing a few every 10 miles until they hit the Garrison Dam; then just turn loose whatever is left.
In all seriousness, just the same as elk, grizzlies are plains animals pushed to the mountains by humans. If i remember correctly, the last ND grizzly was shot in the 1930s in the Killdeer Mountains. And I believe Meriwether and Bill shot (wounded) their first grizzly right at the mouth of the Heart River and killed one up by the Yellowstone confluence.
There seems to be a particular group of people that claims to be the political party backing science until it interferes with their emotions (gender and wildlife management to name a couple). Emotions need to be removed from good science; especially when it comes to management of natural resources.