I guess my read - which is almost certainly wrong - was basically:
[ul]
[li]The government basically decided that the country (and the world) had reached the point of no return. The tipping point. The country was lost to the epidemic, and it was time to shift into containment/preservation mode.[/li][li]Since the country was basically lost, the military stepped in and took over what basic civil services it could (utilities, etc) and regulated when the power was turned on, etc (as shown in the episode).[/li][li]Telecommunications was also shutdown (if it hadn’t failed already) to prevent the societal meltdown going from 10 to 11. Obviously everyone knows the whole shithouse has gone up in flames, but as long as they don’t know exactly how bad it is (is it everywhere or just “here”?), they might just go all sheeple and just hunker down and wait it out. I think most people would do this. Most people would think that eventually the government would reestablish control, etc.[/li][li]That in mind, orders went out to the National Guard all over the country to start establishing camps of uninfected, and to protect them at all costs, etc. Along with that came some pretty harsh orders to establish perimeters around the camps where absolutely everything was killed, regardless of whether they were infected or not, which is what Kim Dickens was seeing, and what we see in the house that was flashing signals at the end of the episode. So why kill everything? Cold hard math, maybe. The military has the supplies and logistics to support ‘X’ number of survivors. Everyone else is an eventual and inevitable threat, and has to be put down.[/li][li]This weeks episode also brought with it the latest orders from the government: Now that a “safe zone” had been established out in the burbs, they were going to make a push into the city and see if they could take it back, etc.[/li][/ul]
I’m probably wrong on most if not all of that, and letting my imagination run wild a bit, but that’s the sorta thing I was going with as I watched last nights episode.