Gary Samore, who was a top nuclear adviser to President Barack Obama, said much of the draft strategy “repeats the essential elements of Obama declaratory policy word for word” — including its declaration that the United States would “only consider the use of nuclear weapons in extreme circumstances to defend the vital interests of the United States or its allies and partners.”
But the biggest difference lies in new wording about what constitutes “extreme circumstances.”
In the Trump administration’s draft, those “circumstances could include significant non-nuclear strategic attacks.” It said that could include “attacks on the U.S., allied, or partner civilian population or infrastructure, and attacks on U.S. or allied nuclear forces, their command and control, or warning and attack assessment capabilities.”
The draft does not explicitly say that a crippling cyberattack against the United States would be among the extreme circumstances. But experts called a cyberattack one of the most efficient ways to paralyze systems like the power grid, cellphone networks and the backbone of the internet without using nuclear weapons.