HARARE – Former Zambian vice president Nevers Mumba, who headed the SADC Election Observer Team (SEOM) to the just-ended Zimbabwean elections, says the cycle of disputed elections in the region could trigger instability in SADC. Mumba made the remarks while being interviewed by Zambian media weekend. His team has submitted its comprehensive report to the SADC Troika. The Zambian politician came…