Anthony St. Jeanos, left, uses a net to skim debris from the water during a test of the waterfalls at the National September 11 Memorial, Friday, May 13, 2011, at the World Trade Center site in New ... more 
Anthony St. Jeanos, left, uses a net to skim debris from the water during a test of the waterfalls at the National September 11 Memorial, Friday, May 13, 2011, at the World Trade Center site in New York. The memorial will be open to visitors after the tenth anniversary on Sept. 11, 2011. less 
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Associated Press | Photo By Mark Lennihan
Fri, May 13, 2011 3:03 PM EDT