BILL HEMMER, CNN ANCHOR: On Memorial Day weekend, the true meaning of the holiday is sometimes overlooked. But in Arlington National Cemetery, the memory of America's fallen veterans is being kept alive, kept alive by a simple act of respect, carried out by the Third U.S. Infantry, that is known as "The Old Guard."</s>UNIDENTIFIED MALE: This is called flag-in. It is part of the activity that The Old Guard does every year prior to Memorial Day putting a flag in to everyone of the grave sites of the soldiers and the family members that are buried here at Arlington. So we are participating along with them to show our appreciation for the sacrifices that veterans have made over the years. We are all just sort of trying to spread out across the hill here and take a row, gives us a chance to sort of look at and remember the people who have made those kinds of sacrifices, and as well as linking us to our heritage. It's an awesome experience when we recognize what this symbolizes for our country and for the world about people who have made such a great sacrifice and given their lives on behalf of their country, in service to their country.</s>HEMMER: Memorial weekend beginning later today. In addition to that, the Old Guard is placing flags in front of more than 250,000 gravestones there in Arlington National Cemetery. They are to be on display on Monday. We will have live coverage of that display on Monday as well.
Memorial Day: 'Old Guard' Remembers at Arlington National Cemetery