An item in the weekend news didn't come as much of a surprise -in some ways. On television one night while I was in South Africa a couple of weeks ago, a notice came up saying that the immediate power shortage had passed and it was okay to turn on more appliances. I hadn't seen the previous notification but can only assume it was advising a shortage was imminent, and please turn off some appliances. But it seems that calling on customer help to deal with infrastructure problems may not be a foolproof plan - which could be why a power shortage in South Africa recently caused a rather large spill of raw sewage into rivers and a popular dam.
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