WTC would have happened using any number of idiots to execute the Blind Sheik's plan. That's my point. When you remove an easily replacable commodity, expect it to be easily replaced.
I know you're focusing on the muslim connection to Ft. Hood, but that guy could have just as easily been secular, and kept all of his crazy on a spiral bound notebook.
No way anyone anywhere ever is going to curtail shootings unless you curtail ALL freedom first.
MY point was that the FBI was investigating some of the WTC bombers for their threats, but determined that they didn't have the means to act and dropped the investigation. Then the bombers hooked up with the Blind Sheik, who hooked them up with a couple professionals and voila!, we have a terrorist incident.
If his military superiors had taken the MAJ Hasaan's pronouncements seriously - as they assuredly would have had he made such pronouncements against Planned Parenthood Clinics - he never would have found himself in position to carry out his plan.
To my mind, that's like being an OC with blinders on every time you go outside.