One cannot afford to negotiate, appease or toy with such trash. To them and the rest of the idiots who think this is the way to go about getting what they want invites and encourages more deadly attacks on non-combatants.
Support those who seek and bring to justice such animals, be they a member of the military or a peace officer on the streets of America. And stand by all who administer justice on the spot when terrorist are discovered in the act of killing American citizens.
We have to stop these bastards . We have to hit them so hard that generations to follow will think hard before they follow suit.
As you state above we must never forget those folks that died on 9-11-01. They were murdered, attacked going about their business of life in America. We can't let that go unpunished or it will happen again and again and again........
Stay Safe !