The newsflow from Nigeria is, as ever, hectic: political alliances are shifting as President Muhammadu Buhari’s All Progressives Congress splits and the People’s Democratic Party, written off only one election cycle ago, draws back power-brokers; finance minister Kemi Adeosun has resigned over her submission of an apparently forged National Youth Service Corps exemption certificate (she had anyway thought she was exempt, having lived in the UK until she was 34); clashes between herders and farmers in the Middle Belt are now killing more people than the jihadist Boko Haram – which has not gone away despite huge military operations.