How safe are Zambians at site of toxic spill?

The Zambian government has dismissed claims of dangerous pollution in the Copperbelt mining region, following safety concerns raised by the US embassy. On Wednesday, the US issued a health alert, ordering the immediate withdrawal of its personnel due to concerns of "widespread contamination of water and soil", linked to a spill at the Sino-Metals mine in February. Zambian journalist, Dingindaba Buyoya tells us about the uneasiness the statement by the USA is causing.

Also, as Uganda hosts nearly two million displaced people. Can it cope with the rising numbers?

And the impact of cocoa smuggling on prices for farmers, entrepreneurs and consumers.

Presenter: Charles Gitonga Producers: Bella Hassan, Yvette Twagiramariya and Stefania Okereke in London with Richard Kagoe and Jewel Kiriungi in Nairobi. Technical Producer: Gabriel O 'Regan Senior Journalist: Karnie Sharp Editors: Alice Muthengi and Andre Lombard