South Korea accuses Japan of waging economic war

Japan and South Korea have stepped up their trade dispute, placing more restrictions on each other's exports. China has threatened to retaliate against President Trump's surprise announcement of new tariffs. The worsening trade rows have unsettled stock markets.

Also in the programme: NATO blames Russia for the breakdown of a Cold War nuclear weapons treaty, after the United States pulled out; and what will be the impact of Saudi Arabia's decision to allow women to travel abroad without a male guardian's permission?

(Image: A South Korean protester holds a placard reading "No Abe (Japanese Prime Minister Shinzo Abe)" during a protest in Seoul against Japan's decision to remove South Korea from a "white list" of favoured export partners. Credit: Photo by Chung Sung-Jun/Getty Images)