NEW ORLEANS, LA - AUGUST 29: Aaron Covin (L) and Cameron Clark practice before performing in a jazz funeral procession during a 10th anniversary of Hurricane Katrina event at the New Orleans Katrina Memorial, where nearly 100 unclaimed or unidentified victims of Hurricane Katrina are interred on August 29, 2015 in New Orleans, Louisiana. Hurricane Katrina killed 1836 people and is considered the costliest natural disaster in U.S. history. (Photo by Joe Raedle/Getty Images)
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Getty Images News Joe Raedle