Residents survey their tornado-ravaged homes May 4, 1999 in Moore, Oklahoma., a day after the tornado hit. Photo: TANNEN MAURY / AFP / Getty Images
US President Bill Clinton (L) delivers a speech to Del City residents with James Lee Witt, Director of the Federal Emergency Management Agency (FEMA), during the Clinton's visit to the tornado-ravaged area on May 8,1999 in Oklahoma. Photo: HECTOR MATA / AFP / Getty Images