Mali's President Ibrahim Boubacar Keita has been officially sworn into office and has pledged to unite his deeply-divided nation. The ceremony took place in the presence of more than 1,000 Malian officials. Some observers believe Keita's most difficult task will be to extend a hand to the ethnic Tuareg minority in the North. RFI spoke to George Klu-tee, a Mali expert who is optimistic.
