President Barak Obama played host to Nigeria's president Muhammadu Buhari last week and went almost immediately after, to his native Kenya. This is the third time he is visiting Africa and expectations were high that Nigeria would be the next port of call. Anyway, the world's greatest leader has his hands full. Let's hope he will do so before he leaves in 2016. After all he is just visiting his Kenya since he became president. Or is there something he is not telling us?