Airline security refers to the measures and protocols implemented to ensure the safety of passengers, crew, and aircraft during air travel. This includes screening passengers and their luggage for prohibited items, such as weapons or explosives, at airport checkpoints. Security personnel, often from agencies like the Transportation Security Administration (TSA), play a crucial role in maintaining safety. In addition to passenger screening, airline security involves monitoring airport facilities and implementing emergency response plans. Technologies such as X-ray machines and metal detectors are commonly used to detect threats. Overall, these security measures aim to prevent incidents and ensure a safe flying experience for everyone.