There was a fatal bear attack in Utah a couple of days ago. A kid was sleeping in his tent when a black bear grabbed him, dragged him away, and mauled him to death. Read more here.
Think there are no bears in your area? Think again. Colorado, Maryland, Missouri, Montana, Oregon, and Pennsylvania all have bears. Here is a range map and collection of population estimates from 1994. In most places, conservation efforts have led to population increases; Missouri, for example, is now estimated to have more than twice as many bears as it did in 1994.