'A lot of people don't understand how a supply chain works," said one executive in the wake of the violent unrest that last week caused food and fuel shortages in KwaZulu-Natal and disrupted supplies of essential goods around the country. "If the chain breaks, you could starve to death with money in your bank account."

A key lesson of last week's unrest was about just how complex and how critical are the supply chains that power SA's economy - and how vulnerable SA is to having them disrupted...

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