fighting first the Japanese, then the French, then us, and WON. today's US wimps are scared silly at the idea of "holing up" for one year, letting shtf's diseases and fighting just pass them by. All it will take is to drive 1-3 pcs of PVC up thru the 18" or so of dirt "roof" of your dugout, with the tops screened and painted camo. Just barely "flush" them, check them at night, with brief flashes of your red lense keychain LED, and then you can read up all day on "how-to" survival info. It can be on a Kindle, with solar powered battery charger, or on microfiche, with a 24x hand held magnifyers, so you can read it. Such info will be priceless barter material a year or so after shtf. Just let everyone THINK that it is all in your HEAD, and keep the source material well-hidden.