In Switzerland, bunkers are everywhere — even under schools and parking garages. Christian Sinigaglia builds and inspects shelters equipped with kitchens, water tanks and decontamination rooms, and business is booming.

Switzerland has 370,000 bunkers — enough space to protect the country's entire population. Demand has surged since Russia's war on Ukraine, and Germany is now exploring similar measures. But opinions remain divided: vital protection or unnecessary paranoia?