Associated Press
FILE - In this Sept. 11, 2001 file photo, a man wipes ash from his face after terrorists flew two airplanes into the World Trade Center towers, causing them to collapse. A federal health official is expected to announce in early June, 2012, whether people with cancer will be covered by an aid program for New Yorkers sickened by World Trade Center dust. An advisory committee recommended in March that the government open up the $4.3 billion program to people who developed cancers after being exposed to the toxic soot that fell on Manhattan when the towers collapsed. (AP Photo/Amy Sancetta, File)

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