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NEW YORK, NY - DECEMBER 15:  The numerals "1" and "6," to be used to spell out "2-0-1-6" during the Times Square New Years Eve celebration, are unveiled in Times Square on December 15, 2015 in New York City. The "2-0-1-6" are powered by 516  L.E.D. bulbs.  (Photo by Andrew Burton/Getty Images)
NEW YORK, NY - DECEMBER 15:  The numerals "1" and "6," to be used to spell out "2-0-1-6" during the Times Square New Years Eve celebration, are unveiled in Times Square on December 15, 2015 in New York City. The "2-0-1-6" are powered by 516  L.E.D. bulbs.  (Photo by Andrew Burton/Getty Images)

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    New Year's Eve terror threats loom over celebrations

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New Year's Eve terror threats loom over celebrations

Possible terror threats in New York, Los Angeles and Washington have caused security concerns for New Year's celebrations. CNN's Evan Perez reports.

New Year's Eve terror threats loom over celebrations

Possible terror threats in New York, Los Angeles and Washington have caused security concerns for New Year's celebrations. CNN's Evan Perez reports.