Alex Ossola

President Trump's threats around Greenland rattle European leaders and U.S.

markets.

Plus, a new AI coding tool is making developers excited, but also nervous.

And Netflix says that revenue and profit grew in its latest quarter as subscriptions topped $325 million.

It's Tuesday, January 20th.

I'm Alex Oselev for The Wall Street Journal.

This is the PM edition of What's News, the top headlines and business stories that move the world today.

President Trump's threat of tariffs on European allies as part of his effort to get his way over Greenland is causing strong reactions from European leaders.

At the World Economic Forum in Davos, Switzerland, Ursula von der Leyen, the president of the European Commission, said today that Greenland's sovereignty was, quote, non-negotiable.

First principle, full solidarity with Greenland and the Kingdom of Denmark.

The sovereignty and integrity of that territory is non-negotiable.

She warned of a, quote, dangerous downward spiral in the transatlantic partnership.

Meanwhile, Greenland's prime minister said that the island must be ready for the U.S.

to resort to military force.

And one of Germany's highest-ranking military officers warned that the rift between the U.S.

and Europe is making NATO vulnerable to a Russian attack.

The rift could also come with economic consequences.

If President Trump does implement the tariffs, some $100 billion worth of American exports, like Boeing planes and bourbon whiskey, could get caught in the crossfire if the EU retaliates.

EU officials say they are prioritizing dialogue with the Trump administration to avoid escalating the situation.

Speaking at the White House this afternoon, President Trump didn't back off his desire to acquire Greenland.