in the first six months of 1964. In 1964, the United States Post Office Department used an image of the eternal flame on an official postage stamp issued to commemorate the assassinated president. The stamp also used the words "And the glow from that fire can truly light the world"—an excerpt from Kennedy's inaugural address. The Kennedy eternal flame has also attracted some unwanted attention as well. The leader of a group protesting segregation in housing was nearly arrested at the grave site in August 1967 after attempting to lead a group of protesters in the singing of "America the Beautiful". A mentally ill individual attempted to throw red paint on the grave in August 1971. A 23-year-old Army veteran committed suicide at the grave in 1972 by plunging a knife into his chest. The cross and the headstone marking Robert F. Kennedy's grave were stolen in 1981 and never recovered. In December 1982, an intoxicated Salvadoran immigrant broke into the cemetery at night and knelt before the eternal flame. He experienced a fatal heart attack, and fell into the flame. In 1997, thieves pried loose one of the paving stones from the terrace in front of the eternal flame and attempted to make off with it. They gave up after realizing the stone was too heavy to move. See also State funeral of John F. Kennedy List of memorials to John F. Kennedy Presidential memorials in the United States Footnotes Notes Citations Bibliography "Army Tacitly Approves Eternal Flame at Grave." New York Times. December 4, 1963. "Artists At Odds On Kennedy Job." New York Times. October 7, 1964. Atkinson, Rick. "Arlington Cemetery." National Geographic. June 2007. Atkinson, Rick. Where Valor Rests: Arlington National Cemetery. Washington, D.C.: National Geographic Society, 2007. "Bodies of Kennedy, Children Are Moved To Permanent Grave." New York Times. March 15, 1967. Broder, John M. and Wheaton, Sarah. "Kennedy Laid to Rest After Day of Honor." New York Times. August 29, 2009. Brown, Emma. "John Carl Warnecke Dies at 91, Designed Kennedy Gravesite." Washington Post. April 23, 2010. Bugliosi, Vincent. Four Days in November: The Assassination of President John F. Kennedy. New York: W.W. Norton & Co., 2007. Bzdek, Vincent. The Kennedy Legacy: Jack, Bobby and Ted and a Family Dream Fulfilled. New York: Palgrave Macmillan, 2009. Carlson, Peter. "Stone Cold Somber." Washington Post. May 25, 1997. Casey, Phil and Diggins, Peter S. "Mourners Keep Vigil