BizNews Radio, 25 May Flash briefing: Outcry against proposed ban on guns for self-defence; Eskom sashes debt; - Eskom, the beleaguered South African state power utility, reduced its debt by almost a fifth. Professional services firm McKinsey, which played a central role in state capture and corruption in the Jacob Zuma era, has repaid R870m to parastatal Transnet. The South African Reserve Bank is studying the benefits of issuing a digital currency for general retail purposes. The DA has launched a petition against the Firearms Control Amendment Bill which proposes a ban on firearm ownership for self-defence by civilians. Absa, Investec and the Development Bank of Southern Africa indicated they could support a bid by a Turkish company to supply emergency power to South Africa.