I'd nearly forgotten this plot:
The ringleader of a white supremacist plot to assassinate Nelson Mandela and drive black people out of South Africa has been sentenced to 35 years in jail.

Former university lecturer Mike du Toit was convicted last year of treason for his leadership role in the plot, after a trial lasting nine years.

Twenty other members of his white supremacist militia Boeremag were also jailed for between five and 35 years.
Link:http://www.bbc.co.uk/news/world-africa-24725177