If you’re THAT paranoid try something more clever like not living right next to the primary target for any enemy of the US government.
There’s stuff where I live, out in the Wastelands, that’s gonna get hit with major megatons.
So I don’t worry and I don’t “prepare”.
I probably won’t even see the flash.
*shrug*
Good point. Though things are set up so that the government can still operate if Washington is hit.