Trump-Ramaphosa meeting: ambush or anticipated ?

Is it an anguishing ambush or masterful management of predictable volatility? As South Africa's leader visits the White House, US President Donald Trump waves fists full of newspaper cuttings that he claims prove a white genocide in Africa's powerhouse. He then pulls out screens to play a montage of video clips of a notoriously provocative opposition leader singing incendiary anti-Afrikaner songs.