Jimmy Lai, one of Hong Kong's most influential pro-democracy figures, has testified in court for the first time in a national security trial that may see him sentenced to life in jail.Also in the programme: Washington is sending anti-personnel landmines to Ukraine in a reversal of previous policy as the Russian advance gathers pace; and we speak to Richard Flanagan, the first writer to win both the Booker Prize for fiction and the Baillie Gifford Prize for non-fiction.(Picture: Media mogul Jimmy Lai, founder of Apple Daily, arrives at the Court of Final Appeal, in a prison van in Hong Kong. Credit: Reuters).