Which government agency is responsible for airport security at O'Hare?

The Transportation Security Administration (TSA) is the government agency responsible for airport security at O'Hare. The TSA was established in response to the events of September 11, 2001, with the primary mandate of ensuring the security of the nation's transportation systems, including airports. Its personnel are tasked with screening passengers, luggage, and cargo to detect prohibited items and threats to aviation safety.

The TSA implements various security measures, including passenger screening techniques and advanced technology to scan baggage. In this role, the agency collaborates closely with airport management and local law enforcement to maintain a safe environment within the airport.

Understanding the roles of other agencies can provide context. The Federal Aviation Administration (FAA) primarily oversees civil aviation safety and regulates air traffic, while the Department of Homeland Security (DHS) encompasses a broader range of national security efforts, including immigration and border security. Meanwhile, the National Transportation Safety Board (NTSB) investigates transportation accidents and incidents but does not play a direct role in airport security.