Slug: PH/FLAGSIN Date: 5/22/2003 Photographer: Rich Lipski/TWP Neg# 142495 Arlington National Cemetery, Arlington, Va. Eight year old, Gray Laufenburg, son of Col. James Laufenburg, Commander of the 3rd U.S. Infantry, the Old Guard, places flags in the 20th Section of Arlington National Cemetery for Memorial Day. Members of the 3rd U.S. Infantry, The Old Guard, will honor America's fallen heroes by placing American flags before the gravestones and niches of service members buried at Arlington National Cemetery. Yearly Memorial Day event: This tradition, known as "Flags-In," has been conducted annually since The Old Guard was designated as the Army's official ceremonial unit in 1948. Every available soldier in the 3rd U.S. Infantry participates, placing small American flags one foot in front and centered before each grave marker. During an approximately three-hour period, the soldiers place flags in front of more than 280,000 gravestones and about 9,300 niches at the cemetery's columbarium to include the Pentagon victim's ORG XMIT: 142495