After disappearing from the radar for several decades, nukes are back, and the decision to modernize the U.S. arsenal will almost certainly kick off a nuclear arms race with Russia and China. Russia is already replacing its current ICBM force with the more powerful and long range "Sarmat" ICBM, and China is loading its ICBM with multiple warheads.
Add to this volatile mixture military maneuvers and a deliberately opaque policy in regards to the use of nuclear weapons, and it is no wonder that Perry thinks that the chances of some catastrophe is a growing possibility.
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