Teju is a 22-year-old waitress. She won?t be voting in the Nigerian election on Saturday. ?My voting card has its benefits,? she says. ?I?ll use it as my ID card but I have no interest in voting. Politics is a man?s game in Nigeria, my vote doesn?t count.? Sangosanya Tolulope, a 33-year-old philanthropist in Lagos, adds: ?There?s something at the back of people?s minds that says women shouldn?t get involved.? On Friday, campaigning for the elections draws to an end. It has been dominated by two key issues: the rampant Boko Haram insurgency in the north-east, and the corruption that has squandered the nation?s oil wealth. Military checkpoints are being established in every city. Borders are...