It looks like Colorado may get the green light to kill wolves that kill livestock. The U.S. Fish and Wildlife Service released its Environmental Impact Statement and draft record of decision Friday. The impact statement gives the state more flexibility to manage the reintroduction of wolves and the option to kill predatory wolves that chronically threaten or kill livestock. The ruling still needs to be finalized. Ranchers had expressed concerns about not having the rule in place before the state plans to reintroduce up to 15 wolves west of the Continental Divide this winter. But Colorado is having difficulty finding wolves. Wyoming, Montana, and Idaho have refused to provide wolves while discussions continue with Oregon and Washington state.