"NPO Promotes Doomsday Bunkers in Japan Amid Rising Security Concerns"
A nonprofit organization in Japan has constructed a model nuclear shelter in Tsukuba to raise awareness about security threats, including Russia's nuclear threat and North Korea's missile development. The organization aims to encourage people to consider building their own doomsday bunkers and has seen a surge in interest, with membership increasing from two companies to around 30 in just over a year.