Transportation security refers to the measures and protocols put in place to protect the safety of people and goods during travel. This includes safeguarding various modes of transport, such as airplanes, trains, and ships, from threats like terrorism, theft, and vandalism. Agencies like the Transportation Security Administration (TSA) in the United States play a crucial role in implementing these security measures. Key components of transportation security involve screening passengers and luggage, monitoring transportation facilities, and ensuring compliance with safety regulations. These efforts aim to prevent dangerous incidents and maintain public confidence in the safety of the transportation system.