If nothing else these are worth checking onsidering for your own stockpile.
http://readynutrition.com/resources/post-collapse-survival-bartering-10-items-that-will-be-worth-their-weight-in-gold_23032018/
As a nation, we are faced with a host of different problems from many directions, both domestically and internationally. The statistical improbability of a disaster occurring (such as war or economic collapse) decreases with the passage of time and the addition of other factors that lead into such. For a couple of good “primers” on collapse and warfare (overall effects on societies and civilizations), I recommend two by Jared Diamond: “Guns, Germs, and Steel,” and “Collapse.”…
MCViewPoint 