The September 11, 2001 attacks marked a profound transformation in airport security worldwide. On that day, the Al-Qaeda organization hijacked four commercial planes, which were used as weapons against targets in the United States, causing the death of approximately 3,000 people.
Since then, measures that were previously unthinkable have become part of travelers' routines. The requirement to remove shoes before going through security checkpoints, the restriction of liquids in carry-on luggage, and passing through body scanners are today commonplace gestures for anyone who travels by plane.
These restrictions represent only the most visible face of a much broader shift in the understanding of national and international security. The article suggests that the attacks triggered a complete reassessment of protection protocols across the aviation sector and beyond.
