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Donald Trump is bringing in new restrictions on Americans visiting Cuba, undoing some reforms led by former President Obama. We assess what impact the changes could have on the island.

We look at the mystery surrounding one of the world's biggest internet hacks, where account details were stolen from Yahoo. We hear what the company's former chief executive, Marissa Meyer, has been telling a Senate hearing in the US.

And finally, we hear about artificially intelligent machines that are supposedly quicker and more clever than your doctor. But would you let them look after you?

All this is discussed with professor Peter Morici, an economist at the University of Maryland, and Simon Cox, the emerging markets editor at The Economist newspaper in Hong Kong.

(Photo: A man wearing a sleeveless sweater with the US flag design walks in Havana. Credit: Yamil Lage /AFP)