"I think this us a sign of underlying structural issues which you have seen in South Africa for a long time, " said Mark Rosenberg, an Africa analyst with the risk research firm Eurasia Group.

CNN: South Africa shocked by police shootings at mine

Mark Rosenberg, former director of the Centers for Disease Control and Prevention's injury-prevention center, said in The Wall Street Journal late last year that the agency stopped most of its research on gun violence after 1996, following a successful lobbying campaign by gun-rights groups.

WSJ: Biden's Emerging Gun Plan Draws NRA Ire

The break-even point for most child care centers is around 65% to 70%, estimates Mark L. Rosenberg, treasurer of the National Child Care Association--but that's assuming your center is large enough to generate economies of scale.

FORBES: How To Run A Child Care Center: Metrics