Day 304: Improbable cap

Credit: Defense Special Weapons Agency

"Beneath this concrete dome on Runit Island (part of Enewetak Atoll), built between 1977 and 1980 at a cost of about $239 million, lie 111,000 cubic yards (84,927 cubic meters) or radioactive soil and debris from Bikini and Rongelap atolls. The dome covers the 30-foot (9 meter) deep, 350-foot (107 meter) wide crated created by the May 5, 1958, Cactus test. Note the people atop the dome."

The U.S. Nuclear Weapons Cost Study Project was completed in August 1998 and resulted in the book Atomic Audit: The Costs and Consequences of U.S. Nuclear Weapons Since 1940 edited by Stephen I. Schwartz.

Read more at the Brookings Institute