Africa News Tonight: On this Africa Day, the continent continues to be the focus of unprecedented attention from global powers, especially the two biggest, the United States and China. A man accused of ordering the killing of some 2,000 Tutsis who were seeking refuge in a church during Rwanda’s 1994 genocide has been arrested in South Africa. And, water experts across Africa are meeting in Uganda’s capital, Kampala, to discuss issues concerning water resource utilization and protection. For this and more, stay tuned to Africa News Tonight!