A police officer who swapped himself for a hostage being held by a suspected Islamist gunman in France has died of his injuries. His cousin pays tribute to him.

Also in the programme: protesters gather in the United States to call for stricter gun laws; the first non-stop flight between Europe and Australia takes to the air; and can autonomous automobiles be programmed to make moral decisions about who lives and dies?

(Picture: Lt-Col Arnaud Beltrame, 44, died after helping to bring the siege to an end. Credit: EPA)

A French policeman who swapped places with a hostage during an Islamist attack is fighting for his life in hospital. The gunman is dead.

Also in the programme: We profile President Trump's new national security advisor, John Bolton. And we hear about the challenging composer, whose work has been chosen to mark Iceland's century of independence.

(Photo: French National Gendarmerie Intervention. Credit: AFP)

A man has taken a hostage in the town of Trèbes, southern France. Three people are believed to be dead.

Also in the programme: John Bolton is to become the new US national security advisor and the changing face of the spy business.

Picture: French gendarmes block access to Trèbes, where a man took hostages at a supermarket on March 23, 2018 in Trèbes, southwest France. Credit: AFP/Getty Images

The US plans to impose tariffs on about $50bn in Chinese goods and limit the country's investment in the US in retaliation for years of alleged intellectual property theft.

Also in the programme: Syrian rebels and their families have begun leaving Syria's Eastern Ghouta, and meet the 106-year-old driver who has no plans to hand over her licence.

Picture: U.S. President Donald Trump is flanked by members of the business community as he holds up a signed presidential memorandum. Credit: Mark Wilson/Getty Images.

Russia has hit out at Boris Johnson for likening Vladimir Putin to Adolf Hitler, calling it "utterly disgusting" and "unacceptable". The Foreign Secretary suggested the Russian President will "glory" in this summer's World Cup in a similar way to the German dictator during the 1936 Olympics in Berlin.

Also in the programme: One year after a terror attack here in London, we hear from the politician who tried to save the life of a policeman outside the British Houses of Parliament and; Syrian rebel fighters begin leaving a besieged area near Damascus.

Picture: Britain's Foreign Secretary Boris Johnson leaves his home on March 22, 2018 in London. Credit: Chris J Ratcliffe/Getty Images