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

Facebook's founder, Mark Zuckerberg, admits the giant social network's made mistakes over the Cambridge Analytica data breach scandal and promises changes. How far is the European Union about to change the game? Also in the programme: What deal did the Nigerian authorities strike with Boko Haram to secure the release of abducted schoolgirls? And police in Texas identify the Austin bomber. (Photo: Facebook Founder and CEO Mark Zuckerberg. Credit: AFP/Getty Images)

An academic who created an app which harvested data from 50 million users says he has been made "a scapegoat" for Facebook and Cambridge Analytica. Also in the programme: People in the north-eastern Nigerian town of Dapchi are celebrating the return of most of the school girls kidnapped by Boko Haram militants last month; and we hear from a Palestinian doctor who saw three of his daughters killed when an Israeli tank attacked his home in Gaza - but who refuses to hate in their name. Picture: Logos of US online social media and social networking service Facebook. Credit: Getty Images/AFP.

Chinese President Xi Jinping has delivered a nationalistic closing speech to parliament, painting China as the rising global power. Mr Xi said "achieving total unity" was the "collective hope of all Chinese people" and any attempts to divide it were "doomed to fail". Also in the programme: A women who accused President Trump of sexual misconduct is running for office, and the Crown Prince of Saudi Arabia arrives in Washington. Picture: Chinese President Xi Jinping delivers a speech during the closing session of the National People's Congress at the Great Hall of the People. Credit: Lintao Zhang/Getty Images.

Interviews, news and analysis of the day’s global events.

International observers have made a string of criticisms of the Russian elections that have given President Putin another six years in power. We discuss what his victory means for Russia and the rest of the world. Also in the programme: Britain and the EU have announced a "decisive step" towards an orderly Brexit deal; and a "game changer" in the treatment of multiple sclerosis. Picture: Vladimir Putin votes at a polling station during Russia's presidential election. Credit: YURI KADOBNOV/AFP/Getty Images

With over three-quarters of the vote, Putin wins a clear fourth term as Russia's president. We hear from a supporter and from a chemical weapons consultant ahead of the visit to the UK by the Organisation for the Prohibition of Chemical Weapons. Image: Russia's President Vladimir Putin delivers a speech during a rally at Manezhnaya Square near the Kremlin in Moscow Credit: EPA

Turkish troops and their Syrian allies have taken the city of Afrin in northern Syria after a two-month battle. More than 150,000 people have reportedly fled Afrin in recent days, most moving south towards territory controlled by the Syrian government. Also in the programme: Russia insists it never produced nerve agent used in former double agent's poisoning; and why a popular TV host is going on trial in Egypt. (Image: Turkish-based troops in Afrin city. Credit: REUTERS/ Khalil Ashawi)

UK diplomats are preparing to leave after they were expelled in the row following the attack on the former Russian double agent. We'll hear from someone who was expelled from Moscow back in 1985. Also in the programme: US officials launch an investigation into a firm accused of mishandling Facebook users' data in support of the Trump election campaign. Picture: The British embassy in Moscow Credit: Oleg Klimov/Getty Images

The British foreign secretary says President Putin himself must have ordered the use of a nerve agent on British streets. We hear from our correspondent in Moscow and the Secretary General of NATO. Also in the programme: We hear from a resident in Eastern Ghouta as the Syrian government launches new strikes. And Uganda born Jennifer Makumbi wins a big American literary prize. (Photo: United Kingdom flag flying outside the embassy in Moscow. Credit: Mladen Antonov/AFP/Getty Images)

The first five-hour ceasefire in the Syrian rebel-held enclave of Eastern Ghouta near Damascus has ended in failure. There've been airstrikes and mortar rounds, and no deliveries of aid. Also in the programme: A landmark court ruling in Germany aims to cut pollution, and Lewis Gilbert, one of Britain's most distinguished film directors, has died. Picture: Smoke rises from the rebel-held enclave of Eastern Ghouta on the outskirts of the Syrian capital following fresh air strikes and rocket fire Credit: STRINGER/AFP/Getty Images

In rebel-held Eastern Ghouta, which has faced intense bombardment by pro-government forces for more than a week, President Putin has called for the shelling to stop for five hours every day, so civilians can leave the enclave. Also in the programme: China's Xi Jinping and women in the Saudi army Image: Syrians walk past destroyed buildings in Arbin in the rebel-held enclave of Eastern Ghouta on February 25, 2018. Credit: ABDULMONAM EASSA/AFP/Getty Images

President Jacob Zuma continues to defy appeals to step down over corruption allegations, as the governing party holds emergency meeting on his future. Also in the programme: Alleged computer hacker with Asperger's syndrome wins appeal against extradition to US; and chlorine-filled bomb reportedly dropped in Syria's Idlib province. Picture: Members of an ANC faction supporting ANC President Cyril Ramaphosa call for South African President Jacob Zuma to resign. Credit: EPA/KIM LUDBROOK

A secret Republican memorandum has been published that accuses the FBI of abusing its own powers to spy on President Trump's election campaign. Mr Trump, who approved the declassification of the memo, said it told a disgraceful story. Also in the programme: more migrants perish in the Mediterranean Sea and thousands of previously unknown Maya ruins have been discovered. (Photo: President Trump, Credit: AFP/Getty)