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DENVER (KDVR) — Checkpoints at Denver International Airport were set up to honor those who lost their lives in terrorist attacks 20 years ago with a wreath and flag, while the entire airport recognized a moment of silence at 6:46 a.m. and again at 3 p.m.

TSA Color Guard presented an American flag while a bagpiper played at a checkpoint in front of passengers coming through the airport.

FOX31/Channel 2’s Lisa D’Souza was at DIA for the event. Watch her coverage in the player above.