Random FactsCuriousOneDecember 05, 2016concentration, defended, dolphins, fact, facts, housed, largest, miles, nukes, seattle, staycurious, Trained, twenty, WorldsComment The world's largest concentration of nukes is housed 20 miles NW of Seattle, and it's defended by trained dolphins. Random FactsCuriousOneDecember 05, 2016concentration, defended, dolphins, fact, facts, housed, largest, miles, nukes, seattle, staycurious, Trained, twenty, WorldsComment