If it were me, and most likely on the advise of my lawyers, at the first sign of a bear I would not only shut the campground down but all access to the forest within X miles. X miles are determined to be the average weeks range of a bear times 2. Now all of those people who show up for their annual camping trip will be turned away very pissed at our government but F those tax payers. One bad apple has spoiled it for everyone. Over time, unless we can cause the extinction of bears, National Forests will ony be available to the general public during hibernation.....until someone gets themselves killed, without prior warned of the danger, during that period. Gotta CYA now.