Why Did People Stop Building Fallout Shelters?
In the 1950s and 1960s, civil defense shelters were built widely across the United States. These structures were designed to protect citizens from nuclear bombings and the subsequent fallout of radioactive materials. The concern about nuclear war led the government and private companies to invest in the construction of fallout shelters. However, by the 1970s and 1980s, the interest and funding for these shelters subsided, and most facilities were eventually abandoned. There are several reasons that may have contributed to the decreased interest and funding in civil defense shelters.
Agreement among Scientists
Before the Cold War era ended, many scientists suggested that it was difficult and impractical to create buildings that could protect humans and animals from the immediate devastation of a nuclear war, including radioactive fallout, strong winds, and massive casualties. According to an academic study published in 1946, nuking cities would create unimaginable damage, leading to the immediate deaths of almost everyone, and leaving barely any chance of survival of those in shelters (). This research contradicts early assumptions that fallout shelters provided adequate protection.
Effectiveness and Strategy of Defensive Measures
As intensive above-ground nuclear detonations by both the USA and USSR continued throughout the Cold War, scientists grew increasingly aware of the reduced effectiveness of fallout shelters. These tests and attacks led experts to reconsider conventional wisdom and conclude that existing shelters, designed primarily as protection against radioactive fallout and blast, were unlikely to provide substantial protection ([1]).
Impact of Government Policies
On June 18th, 1969, the National Security Action Memorandum 290 declared that nuclear war is impossible [], which diminished the significance and urgency of civil defense . Moreover, by that time, the focus moved from defending against attacks toward deterring them. National security concerns shifted, allocating resources for diplomacy and disarming weapons. Given the decline in threats seen as legitimate, resources assigned to building and maintaining survival shelters naturally decreased**.
Environmental and Cost Effectiveness Considerations
Critics began to highlight limitations and high costs of this endeavor. With advanced technology available, environmentalist concerns over resource extraction became more significant, prompting inquiries about the long-term sustainability and ecological balance affected by mass construction and nuclear waste generation.
The immense financial investments went against growing environmental priorities (e.g., ). Additionally, increases in computing power made simulating attacks more effective while reducing need for extensive concrete structures, rendering costly fortifications superfluous( [4])