Security screening is a process used to check individuals and their belongings for potential threats, such as weapons or explosives. This is commonly seen at places like airports, where passengers must pass through metal detectors and have their bags scanned by machines. The goal is to ensure the safety of everyone by preventing dangerous items from being brought into secure areas. During security screening, personnel may also conduct pat-downs or additional checks if something unusual is detected. This process helps maintain a safe environment in public spaces, including events, government buildings, and transportation systems, ensuring that people can travel and gather without fear.