As all the unfolding of "little insignificant" things the Ft. Hood shooter did, all the "little insignificant" things the 9/11 highjackers did, you know taking flying lessons, and not really concerned with landing protocols, ya know little things,...expired visa's,,,, Richard Reid the ass kicked shoe bomber, etc,....
Any reasonable intelligence agency is SUPPOSED to take these "little insignificant" things, and put it into a larger perspective like a physics or high math equation... I have "a" and "b", but need to solve for "c" "d" and "e", how do you do that?
In a truly "global" war on these "virgin seekers" I'm sure fried weenie boy had just as many "little insignificant" things 3 months before he boarded the plane that could be useful.
After all, why else would they be named an "intelligence" agency?