I almost punched an Englishman the other day. We were sitting in a bar, talking about the 20th anniversary of F.W. de Klerk’s Great Leap Forward of 2 February 1990 — the day he rocked the world by announcing that he was about to unban the revolutionary movements, free Nelson Mandela and turn South Africa into a land of peace and justice. I was explaining why I thought de Klerk’s move was an act of heroism almost unparalleled in the history of humankind, but the Englishman didn’t want to know. ‘De Klerk was a loser,’ he said, ‘a racist battered into submission by sanctions, township violence and global isolation, and then forced to do a decent thing that should have been done decades earlier.’ The corollary was of course that Mandela was a sweet old man who shouldn’t have been locked up at all, and the ANC an army of hymn-singing moderates who just wanted to establish a democracy like Great Britain’s. Like I say, I wanted to moer him, and I’d better explain why.