That's a wonderful question. I think what Mr. Putin has done since 2014 has been to promote nuclear weapons more than any other leader has done before in history.
As everyone here will know, in 2004 Ukraine, by the numbers, had the third-highest number of nuclear weapons in the world and agreed to give them up. Since that time, Ukraine has been invaded at least twice, depending on how you count it, by the neighbouring country to which it actually gave the nuclear weapons back in 1994. I misspoke earlier—it was 1994.
That, along with the fact that Russia refers so often to nuclear weapons, is an argument for nuclear proliferation. It's an argument for little countries to arm themselves against big countries.
It will also be, if we let it go this far, if we don't think of our coherent response, an argument for all countries to say, “Oh, I can block the west, not by using nuclear weapons but by pretending to be unhinged and talking about nuclear weapons.” That will give western politicians an excuse to do nothing. I think there is a long-term danger of this scenario.