Besides screening passengers, what other duties does the TSA perform?

The Transportation Security Administration (TSA) plays a critical role in ensuring the security of the transportation system, particularly in airports. Among its various responsibilities, detecting explosives and screening luggage are vital functions that contribute significantly to passenger safety. The TSA uses advanced technologies and trained personnel to identify potential threats that may be present in carry-on and checked luggage. This proactive approach helps prevent dangerous items from being transported on aircraft, thus enhancing overall aviation security.

While customer service, managing flight schedules, and operating airport concessions are important aspects of the airport experience, they fall outside the primary security-focused mission of the TSA. Customer service at airports is typically handled by airlines or airport staff, flight schedules are managed by airlines and air traffic control, and airport concessions are operated by various vendors within the airport environment. Thus, the TSA's focus is specifically on security measures like luggage screening and the detection of explosives, underlining the correct answer's relevance to the agency's core responsibilities.