We live in a wonderful place and a place that will you kill you in heartbeat.....IMO there is no way anyone, even the uber rich can cover all the bases....I do no prepping for any NBC type of scenarios, after serving in the Military and knowing what it takes resource wise to survive in a NBC situation and knowing I will never have the very large amount of money to do it properly I just resign myself that if it happens close to me and bad enough I will be a casualty buried in a large mass grave.....I do not buy gold, silver, diamonds and such as a backup as possible money if a mass failure happens.....I concentrate on having enough of the basics to stay out of harms way....If it's bad enough that order is never properly restored and it comes down to groups holding territory or towns there will be a lot of well fed vultures.....wonder if they are edible ?