Transportation Security Administration

The Transportation Security Administration (TSA) is a federal agency within the Department of Homeland Security charged with protecting the nation’s transportation systems, especially airport security. Since its creation after the 2001 terrorist attacks, TSA has been responsible for screening passengers, baggage, and cargo at over 450 U.S. airports to prevent threats and ensure safe travel. The agency is continually updating its procedures and technology to maintain security while improving the traveler experience.

Major Security Changes in 2025

In 2025, TSA is implementing key updates to streamline airport security. Shoe removal is no longer required, automated screening lanes speed up processing by 40%, and self-service lanes offer an additional 30% efficiency. Advanced CT scanners and facial recognition technology are being introduced to enhance threat detection and identity verification. Travelers can also prepare by reviewing the new REAL ID enforcement rules and the $45 TSA fee affecting airport screening.

Identification and Travel Documents

TSA requires valid identification for screening, and recent updates focus on faster, more secure identity checks. Those traveling internationally should understand their document requirements, including whether it is possible to travel with an expired U.S. passport and what alternatives exist. Proper documentation helps ensure smooth passage through TSA checkpoints.

Ongoing Security Measures

While TSA modernizes many procedures, core security protocols remain in place. Identity verification and security screening continue as essential steps. The current 3.4-ounce liquid carry-on limit is under review, but security remains a priority as TSA balances efficiency with protecting the transportation system from evolving threats.