Guerrilla warfare is what Americans sorely need to learn and understand. Having weaponry and ammo is just one part of the equation. If(?) the SHTF, embracing now regarded dirty and disgusting tactics will mean all the difference between victory for the Republic or an agonizing loss, enslaving our descendants for many long and terrible years to come.
If anyone has seen Captain America: the Winter Soldier, they can see the similarities. All it takes is lethal technology on auto-pilot and the people on the ground are screwed...