Aviation security refers to the measures and protocols implemented to protect passengers, crew, and aircraft from unlawful interference, such as terrorism or sabotage. This includes screening passengers and luggage at airports, using advanced technology like metal detectors and body scanners, and employing trained security personnel to monitor and respond to potential threats. Key components of aviation security involve the Transportation Security Administration (TSA) in the United States and similar agencies worldwide, which establish regulations and guidelines. Additionally, international cooperation among countries helps to standardize security practices, ensuring a safer travel experience for everyone involved in air travel.