Why the Somali armed group Al Shabaab is still a threat

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There's been heavy fighting between Somali forces and Al Shabaab fighters in the central region of Mudug. Last year ,the government said it had shifted its tactics against the militant group.  Are those tactics working? Also, what is the local response after Cameroon becomes the first country in the world to start routine vaccinations against malaria.  And Zambian poet, Vanessa Chisakula, on telling stories through performance poetry.