The U.S. Forest Service is taking comments on a proposal to exempt a national forest in Alaska from what’s known as the Roadless Rule. In Pennsylvania, it’s the same rule that protects some 25,000 acres in the Allegheny National Forest. Opponents of rolling back the rule warn that what starts in Alaska’s Tongass (TAWN-gus) National Forest could have a domino effect on other public lands. Andrea Sears reports from Harrisburg…