Updated September 11, 2021 at 1:02 PM ET
On a recent day in Irvine, Calif., Ali Malik is looking for his son Layth's shoes to get ready to go to an arcade.
Layth is 5 and his brother, Muhammad Binyamin (they call him Binyamin) is 9.
The Sept. 11 attacks happened well before their lives began. So they don't fully understand how it changed so much for this country, led to two American invasions, occupations and wars. And they also don't know how it changed their dad.