The federal government may have shut its doors due to weather conditions — but the guards tasked to the Tomb of the Unknown Soldier aren’t so quick to abandon their posts. With what’s being billed as the storm of the season dumping inches of snow on the Washington, D.C., region, leaving a cloud of closures in its wake — Capitol Hill, area schools, airports, Metro bus service and almost all government offices in Maryland, the capital city and Virginia — the stalwart sentries for some of America’s most revered military sites stand tall and fast. The Society of the Honor...