Why do some U.S. airports have private security, but others use TSA?
Transportation security officers stand at the main security checkpoint at Kansas City International Airport in Kansas City, Mo., on June 3. Arin Yoon for NPR hide caption KANSAS CITY, Mo.
Transportation security officers stand at the main security checkpoint at Kansas City International Airport in Kansas City, Mo., on June 3. Arin Yoon
Read Full Story at NPR News →Why This Matters
The disparity in airport security models reflects deeper tensions in America’s approach to public safety—balancing efficiency, cost, and accountability. As privatization spreads in some regions, it raises questions about whether security should be a federal responsibility or a local one, with implications for both taxpayer burden and service quality.
Background Context
After 9/11, Congress federalized airport screening to standardize security nationwide, creating the TSA. Yet exceptions persist due to a 2004 law allowing airports to opt for private screening if they cover costs—a workaround critics argue undermines consistency. Kansas City’s recent shift back to TSA oversight highlights how political priorities, not just security needs, shape these decisions.
What Happens Next
More airports may reassess their screening models amid rising TSA complaints and privatization pitches from vendors. Congress could revisit the 2004 law, but partisan divides over federal vs. local control may stall reform. Meanwhile, travelers in privatized airports may face different screening experiences—some faster, others costlier.
Bigger Picture
This divergence mirrors broader privatization debates in infrastructure, where efficiency gains often clash with equity concerns. As airports test hybrid models, the experiment could redefine not just security, but the role of government in everyday services.

