3 of 13: Two light beams, right, known as The Tribute in Light representing the Twin Towers illuminate the sky in Lower Manhattan near the One World Trade Center construction site, left, seen from Jersey City, N.J., in honor of the 11th anniversary of the Sept. 11 terrorist attacks, Tuesday, Sept. 11, 2012, in New York. (AP Photo/Julio Cortez) (AP Photo/ Julio Cortez)

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