If the monstrous scenario Matt lays out happens, just whom will you aim your guns at?
How will you plan resistance with no cell phone service and no Internet service to communicate with fellow patriots? It will be hard when C3 becomes C2.
That is why you plan now. There are alternate systems at the local level. You can use laser communication systems that are extremely location specific. That means very hard to tap into. Combine that with a town supported militia, minutemen able to muster at a moment’s notice.