Which of the following agencies has some responsibility for border control and security?

Citizenship and Immigration Services (USCIS) is indeed responsible for various aspects of immigration and naturalization processes in the United States, including the application for and processing of visas and green cards. While USCIS focuses primarily on lawful immigration applications, it plays a role in maintaining the integrity of the immigration process, which indirectly supports border control and security efforts.

USCIS works in conjunction with other agencies to ensure that individuals entering the country meet legal requirements, which is crucial for maintaining secure borders. This includes background checks and ensuring that applicants do not pose a security risk. Thus, while USCIS is not a border control agency in the traditional enforcement sense, its responsibilities related to immigration help uphold border security by regulating who is allowed entry into the United States.

In contrast, other agencies like the Federal Bureau of Investigation (FBI) and the Central Intelligence Agency (CIA) have different roles focused more on criminal investigations and collection of foreign intelligence, respectively. They certainly contribute to national security but are not primarily involved in the border control and immigration processes to the same extent as USCIS.