IF people who work for the government tell us our safety depends on us not knowing what they do, we might suspect that they wanted to cover up wrong-doing. Unless, it seems, they work for state security agencies. STEVEN FRIEDMAN, Professor of Political Studies, University of Johannesburg South Africa’s media are awash with shock at “bombshell” revelations about the country’s security services at the hearings of a commission of inquiry into “state capture”. Testimony shows that the State Security Agency, which is meant to provide the government with intelligence on domestic and foreign threats, was used to fight factional battles…