At this stage, I’m inclined to accept as more likely than not the view held by the Pentagon, the International Atomic Energy Agency, and — in my view most significantly — the Israeli government that Iran’s nuclear weapons program was dealt a very significant blow by the air strikes ordered by President Trump.

Americans can be forgiven for taking Donald Trump’s emphatic pronouncements on this matter with a grain of salt or two. We have grown very used to anything associated with Trump to be the biggest, the best, the greatest of all time, etc. — at least when described as ...