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. The signs, with their simple design of three joined triangles inside a circle, became an emblem of the era. Kennedy to create the shelter program in 1961 in cities across the nation. The small metal signs are a remnant of the anxieties over the nuclear arms race between the United States and the former Soviet Union, which prompted U.S. 38 in the Brooklyn borough of New York, U.S., December 7, 2017.
A yellow nuclear fallout shelter sign is seen hung over the entrance to P.S.
