Rationality is the mirror of mystification. With rationalism you can endlessly circle the argument in defense of thy mystical beliefs.
Your mystified understanding of terrorism is that psychological profiles are sufficient. This subverts due process.
Nothing about rationality guarantees a positive outcome, and is typically a trick that leads to no conclusion. That is the very opposite intent of logical conclusion by way of reasoning.
Irrationality is simply circling the other direction, actually nothing and no different, but the word is used to create a false dichotomy so you can call somebody crazy by another name, and keep the argument and process couched in mystification.
It is literally in the name: the ratio is tangential to the circle.