This is GPS, the global public square. Welcome to all of you in the United States and around the world.

I'm Farid Zakaria coming to you live from New York.

What's start today's show with the attack on Saudi Arabia's oil infrastructure

and Iran's threat of all out war if the Islamic Republic is attacked.

Then a whistleblower Christ Fowl, the president from the prime minister of foreign leaders,

will take into that story. Also what to make of Israel's election results.

All that with a great panel. And an interview with the Secretary General of the United Nations.

This is a threat. Now, on Monday he will convene the globe to call for urgent action on climate change. Will it work?

Finally, with almost 8 billion humans on the planet, we're constantly interacting with people we don't know.

Are we too trusting of them? Malcolm Gladwell gives us the answer.

But first here's my take. The enemy gets a vote. American military leaders are fond of using that line.

General James Mattis uses it so often. It's sometimes attributed to him.

In fact, it's a nugget of wisdom dating back to Sun Su, the Chinese military strategist who counseled that one must know the enemy.

And it describes the central mistake of Donald Trump's Iran policy.

In a confidential memo that was later leaked, Britain's then ambassador to Washington wrote something that most observers knew anyway.

Trump pulled out of the Iran deal largely because it had been signed by Barack Obama and with no thought to an a day after strategy.

But while the decision might have been made for domestic political reasons, it has unleashed serious geopolitical consequences.

The Trump administration's strategy, such as it is, appears to be to double down on pressure on Iran.

Force other nations to abide by America's unilateral sanctions and bet that this would cause Iran to capitulate.

Iran's initial reaction was actually restrained. It simply sought to bypass the U.S.

It continued to adhere to the deal and made efforts to trade with other countries. This failed.

Because of the dollar's centrality to the international financial system, the sanctions worked.

...