Keith Adams

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Available now on the documentary from the BBC World Service.

Imagine if it was possible to engineer your dreams, to influence them by planting an idea in your mind as you fall asleep.

Sounds like science fiction, but we'll be meeting the researchers who say it could improve learning, spark creativity and boost wellbeing.

I'm Keith Adams, and at 4.30 hours GMT on Saturday 21st February, these are our main stories.

Donald Trump outlines new plans to keep some global trade tariffs after the Supreme Court struck down most of his existing levies as illegal.

The family of a Palestinian-American teenager killed by a Jewish settler in the occupied West Bank call for accountability for his death.

Also in this podcast, a British minister says the government is considering introducing legislation to remove Andrew Mountbatten-Windsor from the Royal Line of Succession.

What does it mean for Commonwealth countries who share the British royal family and name things after them?

And NASA shares some dates and excitement.

Donald Trump has called tariffs the most beautiful word in the dictionary, and they've been a powerful tool in his arsenal.

So he was furious when the US Supreme Court struck down his sweeping trade tariffs policy.

The judges decided, six to three, that the president's decision to introduce levies under the International Emergency Economic Powers Act was unlawful.

President Trump had himself appointed two of the judges who ruled the tariffs should have been approved by Congress.

At a press conference, he called those who voted against him fools and lapdogs.

President Trump went on to announce a new 10% global tariff through a different law to replace the ones struck down by the court.

The Democrat Chuck Schumer said keeping tariffs in place will upset many Americans.

The case in the Supreme Court, called Learning Resources v. Trump, was first brought to lower courts by a US company who sell educational toys, importing products from China.

The chief executive, Rick Waldenberg, told us he felt vindicated by the ruling.

While the president has outlined a new plan to retain some of his global tariffs, our correspondent in Washington, Simi Jolaosho, told us what's next for the Trump administration.