The targets are unlimited- that's precisely why we can't just play defensive.
They just need to drop off some duffle bags one morning.
500 muslims, 10000 locations. 20 per Muslim. Maybe 200 in each state. Not hard to do. Drive back home. Blow stuff up all day. 10 here, 10 there, all day, for a week. Fires and explosions in every state. That's what you call a Peaceful Muslim celebration.