Some of the most visible lasting symbols of the Cold War era are the black-and-yellow signs marking nuclear fallout shelters across the country. The man responsible for the design of that sign — Robert Blakeley — died on Oct. 25 at the age of 95.

Some of the most visible lasting symbols of the Cold War era are the black-and-yellow signs marking nuclear fallout shelters across the country. The man responsible for the design of that sign — Robert Blakeley — died on Oct. 25 at the age of 95.

Some of the most visible lasting symbols of the Cold War era are the black-and-yellow signs marking nuclear fallout shelters across the country. The man responsible for the design of that sign —&nbsp;Robert Blakeley — died on Oct. 25 at the age of 95.

How some kids helped with the design of the Cold War fallout shelter sign

A daily public radio broadcast program and podcast from PRX and WGBH, hosted by Marco Werman

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How some kids helped with the design of the Cold War fallout shelter sign

How some kids helped with the design of the Cold War fallout shelter sign