Hence, the next precious metal may be lead.
That said, a currency crisis, bank crisis, mortgage crisis, credit crisis....we have seen them all at one time or another and made it through. That doesn’t mean you shouldn’t plan, prep for a couple months of financial, supply chain disruptions,etc....but Mad Max is not coming to America.
Mad Max may already be here in the person of Chinese, Islamic, and narco-terrorists. It doesn't take that much to put a modern city into chaos. Just cut off the electricity and we'll lose gas, water, and sewage treatment. An EMP would do it too.
At that point, bridges over interstate highways and rail lines would effect a siege but for aircraft. We don't have the lift capacity to keep any more than a few cities going, particularly when potable water is at issue.