During my career, I have listed two LA homes with an underground bomb shelter, exploring one 15’ down under but the other was inaccessible. An LA Times article offers an "interesting" insight as to when and how the so-called need for shelters began. Some readers may recall their own experiences. It was a time when atomic fever and bunker building were in full swing. Starting in the ‘50s and ‘60s, following WWII through the Cuban Missile Crisis and mid-way into the Cold War, federal and local governments along with doomsday entrepreneurs promoted the bomb/fallout shelter as something no family should be without. Some homeowners believed that it was the only means of survival in the event of a nuclear attack. In May 1960 an LA trampoline maker pivoted to making prefab metal fallout shelters for $1,500. Also, a Pomona company sold an igloo-shaped shelter with a guarantee to withstand an atomic bomb blast within three miles (as long as one survived to collect the refund). Even Wallace Neff, the renowned architect, built an underground shelter at his Bubble house in Pasadena where, reportedly, a subsequent owner would retreat for primal-scream therapy sessions. In 1965, 200,000 shelters were estimated nationwide, but building came to an end in CA when County Assessors added a property tax to what I call the original ADU (accessory dwelling unit).