Which agency is responsible for the day-to-day screening of airline passengers and cargo?

The Transportation Security Administration (TSA) is the agency responsible for the day-to-day screening of airline passengers and cargo. Created in the wake of the September 11 attacks, the TSA's primary mission is to ensure the security of the nation's transportation systems, particularly in aviation. This involves employing various measures to protect passengers, including screening processes at airports, monitoring baggage and cargo for potential threats, and implementing regulations that help maintain safety standards across the aviation industry.

While Customs and Border Protection (CBP) is involved in securing the borders and overseeing the importation of goods, its focus is more on preventing illegal imports and protecting maritime and land borders rather than specifically handling airport security. The National Aeronautics and Space Administration (NASA) is focused on space exploration and aeronautics research, and does not perform screening functions at airports. The Federal Aviation Administration (FAA) primarily regulates and oversees civil aviation, including aircraft operations and airspace management, but does not conduct security screenings.

Understanding the role of the TSA helps illustrate the specific responsibilities each agency has in relation to aviation and transportation security, which is crucial for the safe travel of passengers and the integrity of air cargo.