Federal authorities on heightened terror alert despite no known threat

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New York City prepares for ball drop amid heightened security | Vargas Reports

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NYPD heightens security in NYC in wake of New Orleans deadly attack

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Security Heightened in Philadelphia Ahead of DNC

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'Security will be heightened': Safety top of mind ahead of TaxSlayer Gator Bowl

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NYC Security Heightened for Obama Visit

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Heightened security in Times Square ahead of New Year's Eve

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Security heightened for Inauguration Day

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Security Heightened In US Following Manchester Attack

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Security heightened in major cities ahead of weekend protests

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Security heightened in major U.S. cities ahead of possible arrest of Donald Trump

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Security Heightened In Delhi Ahead Of New Year’s Eve Celebrations | News9

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Security heightened at Menora lighting

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July 4th Security Heightened

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Security Heightened at US Military Bases

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Security heightened for New York City Thanksgiving Day Parade

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Security heightened for final night of Chicago DNC

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Security heightened ahead of Biden's 1st State of The Union | GMA

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Security heightened across US

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