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Terrorist Incident

Terrorism Graphic


Devastating acts, such as the terrorist attacks on the World Trade Center and the Pentagon, have left many residents concerned about the possibility of future incidents in the National Capital Region and their potential impact.

In the District, there is a Terrorist Threat Advisory System that mirrors the Federal Threat Advisory System.

In general, you should know the meaning of the five colors:

  • Red: Severe (severe risk of terrorist attacks)
  • Orange: High (high risk of terrorist attacks)
  • Yellow: Elevated (significant risk of terrorist attacks)
  • Blue: Guarded (general risk of terrorist attacks)
  • Green: Low (low risk of terrorist attacks)

You should also take the following precautionary measures:

  • Be alert and aware of your surroundings.
  • Report conspicuous behavior.
  • Take precautions when traveling.
  • Do not accept packages from strangers.
  • Do not leave luggage unattended.
  • Promptly report unusual behavior, suspicious or unattended packages and strange devices to the police or security personnel.
  • Learn where emergency exits are located in buildings you frequent.
  • Plan evacuation routes in case of an emergency.
  • Be prepared to do without services you normally depend on—electricity, telephone, natural gas, gasoline pumps, cash registers, ATM's and Internet transactions.
  • Create an Emergency Go Kit for your workplace (in case you need to evacuate from work).
  • Work with building owners to ensure the following items are located on each floor of the building:
  • Portable, battery-operated radio and extra batteries
  • Several flashlights and extra batteries
  • First aid kit and manual
  • Hard hats and dust masks
  • Fire extinguisher
  • Fluorescent tape to rope off dangerous areas