"Quiet Diplomacy"

The WSJ writes:

There is blood on the streets in southern Africa once more, and the white colonial legacy of economic iniquity is again trotted out for blame. The real culprits, however, are Zimbabwe's octogenarian strongman Robert Mugabe and his South African enabler Thabo Mbeki...Mobs in Johannesburg's poor districts have gone on a rampage the past fortnight, attacking migrant workers and their families. The death toll rose to 42 yesterday; 16,000 people have been displaced. Next door in Zimbabwe, in the wake of an election, opponents of the Mugabe regime are beaten up, driven out of their homes and killed.
The two cases aren't linked in the media coverage, but they are inseparable. Each is rooted in Mr. Mugabe's destruction of Zimbabwe. For his part, President Mbeki has for years propped up the dictator in Harare, through March's presidential elections and the ensuing violence, with his "quiet diplomacy." Mr. Mbeki leaves office next year, though pressure grows daily for him to go sooner. The riots in Johannesburg that jolted this sophisticated and prosperous country are a tragic, but fitting, coda to his waning presidency.