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What is the primary agency responsible for security in all modes of transportation as assigned by the Department of Transportation?

  1. DHS

  2. FBI

  3. TSA

  4. USCIS

The correct answer is: TSA

The primary agency for transportation security, as assigned by the Department of Transportation, is the Transportation Security Administration (TSA). This agency was created after the attacks of September 11th, 2001 to oversee and improve security in all modes of transportation, including aviation, rail, and maritime. Option A, the Department of Homeland Security (DHS), is a higher level government agency which oversees multiple agencies including TSA. The Federal Bureau of Investigation (FBI), option B, primarily focuses on domestic and international threats to national security but is not specifically responsible for transportation security. Option D, the U.S. Citizenship and Immigration Services (USCIS), is primarily responsible for implementing immigration and naturalization policies and is not directly involved in transportation security. Therefore, the correct answer is C TSA.