25 years after 9/11, Las Vegas airport looks back at a day that changed everything

Twenty‑five years after the September 11 attacks, Las Vegas’ airport looks back on a day that transformed air travel nationwide. Before the attacks, the airfield was a pleasant, low‑cost diversion where anyone could stroll to the gates, watch planes up close from observation decks, or people‑watch travelers arriving and departing. That access ended abruptly after Sept. 11, 2001. In the immediate aftermath, airports instituted lockdown security, the Transportation Security Administration took over screening, and agents sometimes searched personal belongings and could remove items from passengers. New rules dictated what could be carried through concourses, and the terms “landside” and “airside” emerged to describe the sides of security checkpoints. Grandparents now had to kiss loved ones goodbye before the TSA line rather than at the gate. The 3‑1‑1 liquid rule—3.4 ounces in a single quart‑sized container per traveler—entered the aviation lexicon. Consequently, anyone under 25 has never experienced the pre‑9/1