Thomas Sowell devotes his latest column at National Review Online to the president’s poor deal on Iranian nuclear ambitions.

Distinguished scientist Freeman Dyson has called the 1433 decision of the emperor of China to discontinue his country’s exploration of the outside world the “worst political blunder in the history of civilization.”

The United States seems at this moment about to break the record for the worst political blunder of all time, with its Obama-administration deal that will make a nuclear Iran virtually inevitable.

Already the years-long negotiations, with their numerous “deadlines” that have been extended again and again, have reduced the chances that Israel can destroy the Iranian nuclear facilities, which have been multiplied and placed in scattered underground sites during the years when all this was going on.

Israel is the only country even likely to try to destroy those facilities, since Iran has explicitly and repeatedly declared its intention to wipe Israel off the face of the earth.

How did we get to this point — and what, if anything, can we do now? Tragically, these are questions that few Americans seem to be asking. We are too preoccupied with our electronic devices, the antics of celebrities, and politics as usual.

During the years when we confronted a nuclear-armed Soviet Union, we at least realized that we had to “think the unthinkable,” as intellectual giant Herman Kahn put it. Today it seems almost as if we don’t want to think about it at all.