On a high spot across the Potomac, there sits a house. If you stand on one of its porches, you have a beautiful panoramic view of the National Mall, the Lincoln Memorial, and the Washington Monument. It was once owned by the grandson of a President and a general. But, now it stands as a sentinel, standing watch over gleaming fields of white stones. They are bright in the summer sun, each one accompanied by a small flag. When one walks amongst these markers, one cannot help bu