Rick Perry may be pressed to resume nuclear tests as Energy secretary

A central mission of the nation’s weapons laboratories is to ensure that the country’s nuclear weapons still work if needed. To do that, the government has long relied on a program that avoids the need for underground testing, instead using data from supercomputers and laboratory experiments and inspecting the warheads.

But some nuclear analysts say that the Trump administration is likely to face decisions that could upend the bomb program, leading to a resumption of testing and perhaps a new global arms race if they are mishandled. Adding to the concern is Mr. Trump’s choice of a politician with no expertise in nuclear or technical matters, former Gov. Rick Perry of Texas, to lead the Energy Department, which runs the nation’s nuclear-weapons labs and the safeguards program…

The United States has not conducted a nuclear test since 1992, and some weapons experts believe that it has lost ground to Russia and China as they ambitiously improve their arsenals and delivery systems. Mr. Perry is certain to receive pressure to resume low-yield underground tests to ensure that existing weapons will function, and to help create new bomb designs, which have been off-limits in the Obama administration. How Mr. Perry responds to that pressure could define his tenure.

“Support from outside the Trump administration for testing will be robust,” said John Harvey, who from 1995 to 2013 held senior positions overseeing nuclear weapons programs in the Energy and Defense departments. “I don’t think they will be compelling in changing minds, absent a serious problem that we uncover in the stockpile,” he said.