Please listen to that interview at the link. 25 min, but if you only listen to 10 min, you will see the picture Hunt lays out, based on his own experience. He makes a point of saying that he offers no opinion, but lays out basic facts and procedure when an embassy is attacked.
His epiphany was Lamb’s testimony when she disclosed that she was in communication with DoS employee on the ground for 6 hours in real time. He realized if she had that real time communication, so did at least 12 other command centers, including CIA and the WH situation room.
He said few realize the extraordinary communications structure the US has developed since 911.
When I clicked the link it said that I had to download it to my PC. I didn't.