Kim Jong-nam killed by VX nerve agent

Malaysian police say weapon of mass destruction killed the North Korean leader's brother. We hear about the background of VX, and why it's the 'most deadly chemical weapon ever produced'.

Also in the programme: Ida Odinga, the wife of the former Kenyan prime minister, tells us about her campaign to stop men paying for the education of young girls in return for sex; and the British Labour Party suffers a historical defeat

(Photo shows: CCTV footage showing Kim Jong-nam speaking to airport authorities following his attack in Kuala Lumpur International Airport. Photo Credit: AFP Photo/FujiTV)