I see the terrorism/global crime vs. protective authorities in terms of offense versus defense. Those on offense are the ones that are always "thinking outside the box" finding new ways to penetrate defenses and accomplish their mission. The US Homeland Security apparatus is not equipped to "think outside the box" and is stuck in static defensive mode. I have not encountered one single TSA agent that demonstrated initiative or creativity in executing his or her job. The activities and decision making processes of customs, border patrol, and many other protective service agents are bound by policies and procedures that were developed in response to past terrorist or criminal actions not in anticipation of how best a bad guy may accomplish his objective. What is kind of comical is that when there is "actionable intelligence" the DHS sends out press releases of their stepped up security practices - talk about tipping your hand.
When security/military forces are on offense - disrupting and targeting criminal/terrorist organizations or cells, then you see the "thinking outside the box" phenomenon in play.