cc Disappointed by Barack Obama's Ghana speech, Tendai Marima says the US president's failure to acknowledge the role America has played in African affairs reflects its 'political historical aphasia'. By glossing over 'how African wars and dictatorships are made', Obama reinforces the image of Africa as the 'black hole of war and corruption', Marima argues. The US media may have hailed the speech as a turning point in US–Africa relations, but says Marima, so far 'Obama's foreign policy has not reflected a politics of change but more of the same'.