Catie Hunter is only 11 years old. Her father, an Army platoon sergeant, has spent five of those years away from her, serving his country in Korea, Iraq and Afghanistan. At her elementary school on an Oklahoma military post, ceiling tiles are removed so that when a Great Plains storm rumbles in, rain can cascade from the rotting roof into large trash cans underneath. To get to class, Catie must dodge what she calls “Niagara Falls.”