Israel’s elaborate network of signals intelligence and human sources failed to uncover a massive plan of attack that involved thousands of terrorists and was months in the making. How could they have missed it? That’s a question its leaders must answer after the war is over. They must also ask why their deployment of military resources near Gaza was insufficient to deter the attack and, failing that, inadequate to protect civilian lives across southern Israel or defeat the rampaging invaders.

But America’s agencies failed, too. They were never expected to unmask internal operations in Gaza, but the CIA and other US intelligence agencies should have discovered what Iran was up to. After all, that regime ranks as one of America’s four enemy states, along with China, Russia and North Korea. Those should be a primary focus of US intelligence efforts — and this was Iran’s biggest foreign policy adventure in years. …

Bad as the intelligence failures were, they were not Washington’s most important blunders. That shameful trophy goes to the Biden administration’s wrongheaded policy in Middle East. Its policy can be summarized in a single word: “appeasement.” The Obama administration pursued the same policy — and many of the same people are in charge now.

[Unlike other failures, this one’s so obvious it doesn’t need much of an investigation. Obama and Biden spent more than a decade appeasing Iran and pushing Israel into allowing Hamas a long leash, and the results speak for themselves. — Ed]