Inoneofthe mostbrutalincidentsin recent years, the NDCabducted30people, including20youngschool children fromaprimary school in Butemure village in Walikale territory.
James Reddoch, an analyst Friedman, Billings, Ramsey, used prescription data fromNDC Health to forecast the performance of biotech companies that he covers.
Last October, an independent evaluation of the NDC scheme by researchers from Sheffield Hallam University identified a number of "teething difficulties".
Mr Mahama, from the National Democratic Congress (NDC) party, was Ghana's vice-president until the unexpected death of President John Atta Mills in July catapulted him into office.