More like fleshbots. We're something organic. What keeps them from reviving everyone is limited resources and, I'm guessing, an imperfect revival system. There are corpses in mass graves here. They clearly didn't get the immortality thing down perfectly.

Don't bother hoping for the dead. A lot of them probably aren't coming back. We've got three and a half months left here before we're all irradiated to death or worse.

[He's a bucket of optimism and rainbows, Charlie. It might be better just to not talk to him.]