What were you doing when it happened? That day the buildings came down at the hands of terrorists on 9/11...
We asked some key people in Airdrie that question, including Mayor Peter Brown.
Wildrose MP Blake Richards recalls when the news broke on 9/11.
Lori McRitchie, Executive Director of the Airdrie Food Bank, remembers going to a breakfast program for the kids at R.J. Hawkey School and hearing the news of the attacks from principal Brian Bowes as she walked through the door.
With the world marking a decade since the deadliest attack on US soil, communities honour those lost in the disaster, while New York and Washington beefed up police presence at checkpoints, subway systems and airports on the eve of the anniversary.