I think what happened in Argentina will more closely resemble coming events here in the States. I own "Surviving the Economic Collapse" by Fernando "Ferfal" Aguirre, it is a good book http://ferfal.blogspot.com/

I don't know how the Latin American countries handle MS13, I don't know if Latin Americans are easier marks than typical North Americans or not. I expect more illegals to come to Colorado, many of them will be gang members, some hardcore, most will be working towards hardcore. Citizens will have to deal with the increased violent crime as well as further devaluation of the dollar.

Police, fire, and EMT protection will fall off because the political parties don't really care about providing essential services, they'd rather use taxes to buy votes.

I would recommend ammunition, medical supplies, water, food, the order of importance depends on what you have already.