Psychic snakeoil software can predict whether a profiled individual is prone to acts of terrorism.
Until now, however, no means has existed to identify individuals who may be potential terrorists but are unknown, and in advance of any act. These are individuals who are emotionally, psychologically, and intellectually "equipped" and have strong motivations toward terrorist behavior. These individuals may be otherwise indistinguishable from the normal population. They are "bombs that could go off" once prepared, positioned, or triggered, but are not recognizable as threats before an act.
(Thanks, Damien!)