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This combination of Sept. 11, 2005 and July 29, 2015 aerial photos show the Lower Ninth Ward of New Orleans flooded by Hurricane Katrina and the same area a decade later. Before Katrina, the Lower Ninth Ward was a working-class and predominantly African-American neighborhood just outside the city's historic center. (AP Photo/David J. Phillip, Gerald Herbert) ORG XMIT: NY716

Mardi Gras reveler Mike Turpin, whose night still isn't over, reacts as a front loader collects beads and other debris left behind by revelers on Bourbon Street in the French Quarter of New Orleans, early on March 9. Ash Wednesday marks the end of Mardi Gras festivities and the beginning of the Lenten season for Catholics.