The highly visible MFF exercises will generally last 15 minutes or less and have a limited impact on legitimate trade and travel. As the men and women of CBP conduct these drills, it is important for the traveling public to be aware of these operations and understand that they will be done quickly.
CBP is continually assessing the capabilities of our facilities and has been making — and will continue to make — necessary preparations. Preparations include participating in operational readiness exercises and the mobilization of resources, as needed, to ensure the facilitation of lawful trade and travel.
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Author: U.S. Customs and Border Protection