Thousands of workers affiliated with South Africa's two largest workers union federations are expected to down tools tomorrow (Wednesday) and join the planned national shutdown. Labour federations, Congress of SA Trade Unions (Cosatu), and the SA Federation of Trade Unions (Saftu) say the strike is in response to the socioeconomic challenges faced by the poor and working class, caused by escalating fuel prices, rolling blackouts, and unemployment. Elvis Presslin spoke to former labour unionist and author Dr. Ebrahim Harvey