To me the worst incompetence was when the FBI had photos of the brothers. Even then, the FBI didn't recognize who they were, even after having been tipped off by the Russians, that the brothers were a potential terrorist threat..
The FBI asked the general public for help in identifying them from the photos.
What incompetence!- Tom"
Well, you see, they didn’t need to be alert for terrorists, because our Dear Leader had “Al Qaeda on the run.” Just ask Candy Crowley.