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Officer Daniel P. Casey stands guard Sunday by the 9/11 Memorial of Maryland, which was unveiled in front of the World Trade Center on the 10th Anniversary of the Sept. 11 attacks.
Officer Daniel P. Casey stands guard Sunday by the 9/11 Memorial of Maryland, which was unveiled in front of the World Trade Center on the 10th Anniversary of the Sept. 11 attacks. (Algerina Perna / Sun Photographer)
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