Instead of the color-coded advisory system that's been in place since 2002, the Department of Homeland Security (DHS) will now issue detailed alerts for credible threats of terrorist attacks in the United States. Those threats will be classified as Elevated if there's no specific information about timing or location, or Imminent if the threat is believed to be occurring very soon.
Overview of the New System
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Sample of New Alert (PDF)
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Frequently Asked Questions
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