Estimated portion of all U.S. nuclear waste that Nevada's Yucca Mountain dumpsite will hold when it is full in 2046 : 3/5

Richter-scale magnitude of an earthquake last June twelve miles from the Yucca site : 4.4

Minimum number of U.S. companies, individuals, and organizations that are licensed to possess radioactive material : 67,000

Decades by which the United States applied last spring to extend its nuclear testing in the Marshall Islands : 4


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