By Kayla Benjamin for The Washington Informer.Broadcast version by Brett Peveto for Maryland News Connection reporting for the Solutions Journalism Network-Public News Service Collaboration Every morning, 70-year-old Al Powell takes long walks on the Sligo Creek Trail, covering miles of well-paved track alongside the burbling water. It’s an incredibly convenient place to walk for Powell: the trail and the creek run right past his home in Hyattsville, where he has lived since 1974. He and his wife, Geeta Powell, can see the path from their backyard. ...