8 Things You May Not Know About Our Air Defense on 9/11

https://www.defense.gov/Explore/News/Article/Article/1955624/8-things-you-may-not-know-about-our-air-defense-on-911/

Two New York Air National Guardsmen supporting air defense on 9/11 share their recollections.

https://peterholland765.wordpress.com/2021/09/01/8-things-you-may-not-know-about-our-air-defense-on-9-11/