The U.S. Fish and Wildlife Service has finalized a plan that could lead to the expansion of the Okefenokee National Wildlife Refuge. The plan approved by the FWS-which manages the 407,000-acre refuge-adds 22,000 acres to the Okefenokee’s “acquisition boundary.” That includes the creation of a 1-mile “fuel reduction zone” encircling the swamp to prevent the wildfires that occur in the swamp from engulfing the commercial timberlands surrounding it.