I do believe their leadership MUST condemn this openely and with real intent. Some already do, some were raising the warning flag all along ... but not enough.
I believe anyone who participated in the attack and anyone who supported it in any way (monetarily, logistically, safe haven wise, etc.) should be smitten from the face of the earth with no tolerance and no physcial mercy ... may God be the Judge spiritually. Let that trail lead wherever it may, abroad or domestic ... to whatever nation, to whatever government, to whatever institution.
Then we say to the rest ... DON'T EVER EVEN THINK ABOUT DOING IT AGAIN, OR YOU WILL GET EVEN WORSE.
But are they the exception, or the rule?
Is there a point at which you finally do throw in the towel?