This one is just breathtaking in its petty vicious mean loathsomeness. Brian Sokutu in The Citizen:

The Mandela 100 commemoration became a mini battlefield in the ongoing US political war this week, as the Trump administration ordered that Barack Obama not be given any assistance other than security arrangements by the American embassy in South Africa.

The high-profile visit by the former president was mainly arranged and coordinated by the Nelson Mandela and Obama foundations, with no assistance from the US embassy in Pretoria – a break from the diplomatic tradition of offering support to any visiting American leader.

None of the US embassy staff had to play any role due to “instructions by Washington” that Obama should