US offers $1m reward for Bin Laden's son

The United States is offering a reward of up to $1m for information about one of the sons of the late al-Qaeda leader Osama Bin Laden. Hamza Bin Laden is emerging as a leader of the Islamist militant group according to US officials. Also in the programme: the family of Otto Warmbier has spoken out against President Trump's suggestion that Kim Jong Un knew nothing about the American who died shortly after being released from North Korea; Crowds have welcomed back a captured Indian fighter pilot; and the scientists who have developed a strain of yeast that will produce THC and CBD, the active ingredients in cannabis.