Muhammadu Buhari tells CNN 's Christiane Amanpour that he will fight corruption in Nigeria . He says the country needs to be "cleansed" of corrupt officials and politicians who have been involved with drug trafficking, money laundering or other illegal activities.
Muhammadu Buhari tells CNN 's Christiane Amanpour that he will fight corruption in Nigeria . Nigeria is the most populous country in Africa and is grappling with violent Boko Haram extremists . Nigeria is also Africa 's biggest economy , but up to 70 % of Nigerians live on less than a dollar a day .