Here's my op-ed that uses long-term orientation, probabilistic thinking, numeracy, consider the alternative, reaching our actual goals, avoiding intuitive emotional reactions and attention bias, and other rationality techniques to suggest more rational responses to the Paris attacks and the ISIS threat. It's published in the Sunday edition of The Plain Dealer, a major newspaper (16th in the US). This is part of my broader project, Intentional Insights, of conveying rational thinking, including about politics, to a broad audience to raise the sanity waterline.
If you are a rational player, then you were already doing that before the enemy action. So the correct response is to keep doing what you were already doing.
(Of course you also update on the enemy action, and maybe this could change your strategy. However, I don't think there is much to update on now. The fact that ISIS has a few suicidal volunteers is not new.)
We should update on ISIS having an increased desire to attack Western cities.