In 1995 and 1996, 66 gray wolves were relocated from Canada to Yellowstone National Park and central Idaho to help recover a wolf population that had been exterminated in the northern Rockies. The gray wolf relocation is considered one of the most successful wildlife recovery projects ever attempted under the Endangered Species Act; today there are more than 1,600 wolves in the region. But a debate has erupted between conservationists and ranchers over the question: how many wolves are too many? Last year, the Obama Administration entered the fray by removing federal protection for some of these wolves, paving the way for controversial state-regulated wolf hunts. The move has wolf advocates fuming, with more than a dozen conservation groups suing the Interior Department to restore federal protections. NOW reports on this war over wolves and implications for the area.