[Barst]

"There are no sharp lines between small 'tactical' nuclear weapons and large ones, nor between nuclear weapons targeting facilities and those targeting armies and cities. Nuclear weapons have not been used for 60 years."

"Once the U.S. uses a nuclear weapon again, it will heighten the probability that others will too. In a world with many more nuclear nations and no longer a ‘taboo’ against the use of nuclear weapons, there will be a greatly enhanced risk that regional conflicts could expand into global nuclear war, with the potential to destroy our civilization."

“It is gravely irresponsible for the U.S. as the greatest superpower to consider courses of action that could eventually lead to the widespread destruction of life on the planet. We urge the administration to announce publicly that it is taking the nuclear option off the table in the case of all non-nuclear adversaries, present or future, and we urge the American people to make their voices heard on this matter.”