(Mark Graves | The Oregonian | The Associated Press) Protesters roam the Malheur National Wildlife headquarters in Burns, Ore., on Sunday, Jan 3, 2016. Armed protesters took over the Malheur National Wildlife Refuge on Saturday after participating in a peaceful rally over the prison sentences of local ranchers Dwight and Steven Hammond. The decision to send the man back to prison generated controversy and is part of a decades-long dispute between some Westerners and the federal government over the use of public lands.