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The threat level in the airline sector is High or Orange. Read more.
The Office of Immigration Statistics recognizes the importance of protecting the identity of individuals included in the data used to generate tabulations, reports, and other research. For more information, read OIS's disclosure policy.
Additional information about the disclosure policy of the Department of Homeland Security is available from the DHS Privacy Office Web site.
Access our definition of terms.
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This page was last reviewed/modified on April 8, 2009.
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