spokesperson says the ukrainian partners are using the aid to extraordinary effect. andrea. thanks to molly hunter. thank you very much. and of course, joining us now, former u.s. ambassador to russia, michael mcfall and former ambassador to nato. first of all, let me play an answer from another former u.s. ambassador to russia. cia director, william burns. when asked from senate arm services chairman, about how a cornered vladimir putin might use weapons. given the potential desperation of president putin and the russian leadership, given the setbacks they ve faced so far militarily, none of us can take lightly the threat posed by a potential resort to tactical nuclear weapons or low-yield nuclear weapons.