The Interior Department’s Bureau of Land Management oversees about 250 million acres of public land in the West. Much is leased out, some to energy and mining companies, but mostly to ranchers for grazing cattle and sheep. The bureau is supposed to find a balance between the public interest and the interest of the leaseholders — upholding the public interest whenever conflicts arise. In the 1990’s, the bureau took this responsibility seriously, requiring ranchers to observe sensible grazing practices that protected the environment. Then came the George W. Bush administration, which eased the regulations to please the ranchers, many of whom had begun to think of the land they were only renting as their own.
http://www.nytimes.com/2010/10/04/opinion/04mon4.html?_r=1