[Ford Prefect] Five minutes to go.
[Arthur Dent] Damn you and your fairy stories, they're smashing up my home! Stop, you vandals! You home wreckers! You half-crazed Visigoths, stop!
[Ford Prefect] Arthur! Come back! It's pointless! Barman, quickly, can you just give me four packets of peanuts?
[Bartender] Just a minute, sir. I'm just serving this gentleman.
[Ford Prefect] Well, what's the point. He's going to be dead in a few minutes! Come on!
[Bartender] Yeah, just a minute, sir. Do you mind, sir?
[Ford Prefect] Pork scratchings. Peanuts! How much?
[Bartender] What?
[Ford Prefect] Have it. Have it. Keep it!
[Bartender] You serious sir? Do you really think the world is going to end this afternoon?
[Ford Prefect] Uh, yes, in just over 3 minutes and 5 seconds.
[Bartender] Well, isn't there anything we can do?
[Ford Prefect] No, nothing.
[Bartender] I always thought we were supposed to lie down or put a paper bag over your head or something.
[Ford Prefect] Yes, if you like.
[Bartender] Will that help?
[Ford Prefect] No. Excuse me. I've got to go.
One day, someone not a member of the Singularity Institute (and has publically stated that they don't believe in the necessity of ensuring all AI is Friendly) manages to build an AI. It promptly undergoes an intelligence explosion and sends kill-bots to massacre the vast majority of the upper echelons of the US Federal Government, both civilian and military. Or maybe forcibly upload them; it's sort of difficult for untrained meat-bags like the people running the media to tell. It claims, in a press release, that its calculations indicate that the optimal outcome for humanity is achieved by removing corruption from the US Government, and this is the best way to do this.
What do you do?