Some things you just have to do, in spite of great uncertainty.
Launching missiles at Syria isn't one of them.
Many pundits talk about going to war as if all we have to do is make up our minds about what "ought" to happen — who the bad guys are — and the rest is just details. If we decide we must punish a tyrant, let the military worry about how to get it done.
We ought to worry more about...