Indeed, on the first question, without having the exact figures, we've come down from about 60,000 nuclear weapons in the world at the height of the Cold War to the figure of 27,000. Clearly that's progress, but equally clearly there's a long way to go still.
On that $150 million contribution, yes, it's essentially in Russia and the states of the former Soviet Union. The projects include decommissioning of Soviet-era nuclear submarines and redirecting WMD scientists in those countries to non-military purposes. And there are programs securing sites where nuclear material is located, and biological non-proliferation projects.
As was noted, I think they all do contribute to our own, and global, security.