The only “Red Cell” operation I heard of happened well BEFORE 911, and a warrior/patriot named Richard(Dick) Marcinko was a part of it. Did the CIA do an operation with the same name?
Red Cell, Red team, etc, are generic terms for a group within a larger organization that’s supposed to “think outside the box,” especially with regard to analyzing your side’s own vulnerabilities. There’s nothing unique about the name.
When I was stationed at Bragg I was on a small three day leave camping and Marcinko and some other of his crew were a few sites over. I had to go over and meet the men( and his wife I think can't remember now). It was pretty funny, I challenged all of them to a swim contest and did okay except one person who happened to be world class. Of course he called me a limp dicked knuckledragging army puke and I called him a paint sniffing lower than pond scum guppie...only thing I really wish was having him sign my dog eared paperback copy of "Rogue Warrior." But alas, never happened. I always wondered if in my prime I could have made it as a SEAL, my cousin( 2nd cousin) as mentioned here is a SEAL( aka butterball) and he told me it was hard, very hard. So, now occasionally I wonder.
Red Cell uh? Maybe the pentagon took up where Marcinko left off. Doesn't Marcinko run a security business now?