For those spared the ordeal of sifting through the NATO summit communique, here’s the concise low down: Russia is an "acute threat" and China is a "systemic challenge." NATO, of course, is just a bunch of innocent kids building castles in a sandbox. There were the days when Lord Hastings Lionel Ismay, NATO's first secretary-general, coined the trans-Atlantic purpose: to “keep the Soviet Union out, the Americans in, and the Germans down.”