People pause near the 9/11 Memorial site during memorial observances on the 13th anniversary of the 9/11 attacks at the site of the World Trade Center in New York, Sept 11 2014. Politicians, dignitaries and victims' relatives were gathering in New York, Washington and Pennsylvania on Thursday to commemorate the nearly 3,000 people killed in al Qaeda's attack on the United States 13 years ago on Sept 11. [Photo/Agencies]
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