Thousands of children reportedly trapped in historic city of Timbuktu

More than 136,000 people, including an estimated 74,000 children are trapped in the historic northern Mali city of Timbuktu, according to the NGO Save the Children. This follows a siege by the al-Qaeda linked jihadistsHow did Zambia get into so much debt and how it plans to get out of it?And we meet Abdullahi Mire - winner of a top UN award for promoting education for refugee children.