[Daily Maverick] So Unit 4 of the Medupi power station has blown up. Repairing the 800MW generator will cost an estimated R1.5-billion to R2-billion and will take two years. Following so shortly after the insurrection in KwaZulu-Natal and Gauteng, and the extensive hack of Transnet's IT systems, one can't help looking for saboteurs under the debris. But suggesting that engineers and other skilled workers would put life and limb on the line to cause a hydrogen explosion is as extreme as former public enterprises minister Al