Two words:
SECOND AMENDMENT.
Which to my mind makes the 4th Circuit court decision even more suspicious. Think about it, it covers the states surrounding D.C. Remove or restrict the rights of citizens to even have the means of self-defense will only help Terror cells do more damage.
Do more damage and our weak-politicians will call out for truce and appeasement. In my mind it all starts to come together in a real-world strategy for asymmetric warfare.
The Mossberg 500 and Winchester/Marlin 30.30 are still very effective weapons.