My wife’s cousin works for Blackwater/XE/whatever they’re calling themselves this week. He was in Kosovo during and after the war. He spent several years there. He told me once that three things became trade currency in Kosovo. In no particular order, those items were: toilet paper, reading material (books/magazines) and bullets.
SHTF School Blog is written by Selco a survivor of the Bosinian War. His experiences should open many eyes. Besides his blog you can read some here at this FR post:
http://www.freerepublic.com/focus/f-news/2798007/posts