I agree in some aspects of that, however our enemy has learnt from our past mistakes, the terrorist cells are organized much like our "need to know information" It was said that some of the hijackers on September 11th had no idea the plan was to use the planes as weapons, they thought it was a normal hijack if that is the case, and even terrorist cell members do not know the whole plan it would be hard to imagine that they "leaked" a whole lot of information elsewhere.
It seemed we focused to hard on technological means of gathering intelligence, and got rid of our assets of "man on the ground" and informers, the enemy however uses low-tech means to achieve their goals and to relay information, some of their messages were carried through afghanistan by couriers, intercept that with a wire-tap!
