Maintenance of the shelter system, which once entailed federal funding to stock shelters with food and water, ended decades ago. In the aftermath of a nearby nuclear explosion, any survivors counting on the signs to lead them to safety from radioactive fallout after needlessly dashing outside would likely find themselves rattling locked doors or perhaps breaking into what is now a building's laundry room or bike-storage area.
But should catastrophe ever strike, the signs, which still linger in their thousands, would be best ignored, city officials and disaster preparedness experts say. Although the Cold War era has long ended, North Korea continues working to develop nuclear-tipped missiles capable of hitting the United States amid bellicose rhetoric from Washington and Pyongyang.Ī nuclear explosion is now seen as even less likely than during the Cold War. While some New Yorkers may barely notice them today, to others they can be an uneasy reminder that the threat may have altered and diminished, but it has not vanished.