Professor at the Wits School of Governance in South Africa(SA), Alex Van den Heever says that the government's National Heath Insurance (NHI) bill which President Cyril Ramaphosa is expected to sign into law is likely to be challenged as it is viewed as ambiguous and premature. Van den Heever, says what some government leaders have allegedly been saying that the private sector will cater for the millions public health care users is rather misleading and untrue. Channel Africa's Sisi Segalo reports