Remember "Duck and Cover"? Fallout shelters, various versions, were all the rage in the 60s, perhaps peaking around the Cuban Missile Crisis. My father installed an underground shelter on the 80 acres outside of town that was his weekend getaway for rabbit hunting and fishing. Two weeks worth of popcorn,peanuts,and water (no TV) and you could emerge to face the Brave new World. Dad never realized it, but he developed a perfect BOL,in today's parlance.

Firearms certainly belong in any normal, moderately well equipped household, but lots of survivalist types place way too much emphasis on weapons, and clearly anticipate way too much full scale combat...