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US secretary of state John Kerry is due to commence a two nation African trip taking him to Kenya and Djibouti. Kerry is expected in Nairobi on Sunday, where he will hold talks with President Uhuru Kenyatta. With the threat posed by Al-Shabaab in the region, Kerry and Kenyatta will have plenty to discuss. The US has long provided intelligence and firepower in the war against the Al-Qaeda-linked Somali militant group. But is it time to rethink tactics? CCTV’s Robert Nagila reports