Yes! Makes a lot more sense than secret service. See this excerpt from this NSA document: https://fas.org/irp/nsa/nsa-ppd-28.pdf

(U) SIGINT activities that take place in response to foreign intelligence requirements, for example, those specified in the National Intelligence Priorities Framework, the National SIGINT Priorities Framework, and such follow-on direction or guidance that may be provided, as appropriate, by the President, the Director of National Intelligence, the Secretary of Defense, or DIRNSA/CHCSS as the SIGINT Functional Manager may result in the acquisition of communications that contain personal information of non-U.S. persons.

(U) Whenever practicable, collection will occur through the use of one or more SELECTION TERMS in order to focus the collection on specific foreign intelligence targets (e.g., a specific, known international terrorist or terrorist group) or specific foreign intelligence topics (e.g., the proliferation of weapons of mass destruction by a foreign power or its agents). In addition, if a collection method is regulated by FISA, the collection method will not be employed until the collection has been authorized.