To be fair ‘weapon of mass destruction’ is not a lie, as anything can be a weapon of mass destruction. Someone’s fist can be a weapon of mass destruction. They deliberately made it vague, so they could make it up as they went along.
Weapons of mass destruction might give us images of nuclear missiles, but the thing with ‘lies’ is that you have to word them right so you can change the truth and make it up as you go along so that way you can say you were never lying