As Gabon is rocked by violence following the contested re-election of President Ali Bongo, experts says electoral fraud in Africa is becoming harder, thanks to civil society vigilance and spread of mobile technology. Opposition leader Jean Ping on Friday declared himself the rightful president of Gabon and called for a recount, following Bongo’s claim of victory with a razor-thin margin of just under 6,000 votes in the August 27 election. But recent elections in Nigeria, Ivory Coast, Benin and Burkina Faso have all been held largely without dispute, overseen by engaged citizens who assured careful monitoring of the process, said Mathias Hounkpe...