Nigeria awaits presidential election result

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As the results of Nigeria's presidential election continue to come in, the US and Britain have issued a joint statement expressing concern about possible "political interference". Incumbent Goodluck Jonathan is facing a strong challenge from former military ruler Muhammadu Buhari. The final outcome is expected on Tuesday. Also on the programme, the general election campaign gets underway in Britain with the economy playing a key role in the debate. The BBC's business editor Kamal Ahmed explains the arguments on all sides. Plus, in football, health professionals urge the English Premier League to look outside the alcohol industry for high profile sponsorship deals.