This document discusses airport security and the implementation of new security measures by the Transportation Security Administration (TSA) after the September 11th attacks. It details how the TSA sent site survey teams to 33 additional US airports in August 2002 to install new baggage screening equipment, checkpoints, and explosive detectors. The article explains that this was part of increased efforts by the US government to improve airport security and protect against future terrorist threats through the use of advanced screening technology and hiring of new security personnel at American airports.