Zambia was the second stop on U.S. Treasury Secretary Janet Yellen's three-nation, 10-day tour of Africa, which started in Senegal and ends in South Africa. In Zambia, Yellen held talks with President Hakainde Hichilema and different stakeholders focussed on strengthening relations with a country that has been the focus of Chinese trade and investment for years. Reporter Daniel Tonga reports from Lusaka.