Hurricane Katrina survivors (L-R) Iona Renfroe, her niece Michelle Agillard and Christine Mayfield, all from Louisiana, gather to speak to the press against U.S. President Bush's handling of the Hurricane Katrina disaster, outside the White House in Washington, September 8, 2005. Meanwhile, a Mexican army convoy rolled into the United States on Thursday with food, water and medicine for Hurricane Katrina victims, the first Mexican military operation on U.S. soil in 90 years. REUTERS/Jason Reed