President Trump is right. His speech at the United Nations was his third act of Reagan-like statesmanship, after the historically accurate, morally rooted and inspirational speeches in Riyadh, Saudi Arabia and Warsaw, Poland. This time, he pointedly spoke for those who cannot speak in Iran, North Korea, Venezuela, and suppressed people around the world. It was a tour de force, and it’s hard to disagree with any word. Once again, Ronald Reagan would be nodding.Most immediately, although the president thanked many and elevated democracy over oppression, he began with North Korea. So let’s focus once more on North Korea. Here is the seminal fact: Under no credible scenario can North Korea be allowed to launch a conventional- or nuclear-armed ballistic missile.