This is the most outrageous of all if you ask me. There ARE people responsible, and Congress knows who they are. For whatever reason though, they choose not to act by firing these clowns.
If people want to learn of the names of those responsible, all they have to do is read "Breakdown" by Bill Gertz. He names names. The folks named, for the most part, are nobodies. Incompetent beaurucrats in positions of authority they have no business being in. These incompetent boobs completely ignored evidence provided to them by subordinates.
If anyone wants to learn what happened, then I would highly suggest Gertz's book. By the time you are finished, I can guarantee that you will be more than outraged. If for no other reason than because these same folks are still in positions of authority.