There is no way to confirm that contention, however, until such an alternative capability has been created using nuclear tests to validate the sophisticated models and data derived from these new SSP assets and to establish that the training provided for the next generation of scientists is adequate to assure the safety, security and reliability of the stockpile.

CENTERFORSECURITYPOLICY: A credible nuclear deterrent

According to Mr Fujimoto's models, the last existing nuclear plant could close down in 2049.

ECONOMIST: An unusual civility brought to civil protest

With no control rods to jam, they are far safer than the old models -- you might well call them nuclear batteries.

WSJ: The New Nuclear Revolution

That is, the assessments must be grounded on existing nuclear test data, nonnuclear tests, fundamental science experiments, and simulations using validated computer models.

CENTERFORSECURITYPOLICY: US Nuclear Stockpile