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.
Yes, and that means he won't focus on ISIS as ISIS mostly doesn't fight against him but against rebel groups that fight him.
I suspect who is fighting who at the moment is mostly driven by tactical considerations and just plain physical proximity. ISIS, basically, fights everyone it comes into contact with. If there are rebels between it and Assad, it will fight the rebels. If Assad pushes the rebels back and comes into direct contact with ISIS, it will fight Assad.