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2010

advisory

board

coded

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danger

 department elevated fear ferry government homeland hsas level marsec nantucket national nationwide notice ntas office old replaced safety security showing sign system terrorism terrorist terrorists threat usa warning yellow

Sign US Terrorist Threat Level Elevated Yellow Royalty-Free Stock Photo


Sign US terrorist threat level elevated yellow Stock Photo
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Sign US terrorist threat level elevated yellow #19469589
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Sign showing nationwide threat level at elevated yellow under Homeland Security Advisory System (HSAS) at the ferry office in Nantucket, Massachusetts, USA on November 14, 2010. This was under the old color-coded system. On April 26, 2011 the US Government replaced the color-coded Homeland Security Advisory System with the new National Terrorism Advisory System (NTAS).

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