Although a commited veteran of the ANC, Mlangeni was no party apparatchik. He was outspoken against endemic corruption in government.
Trump's new executive order reflects a fear of sabotage, where an enemy such as China or Russia could turn off critical infrastructure like the internet or communications capability.
Edgar Allen Poe, Sigmund Freud and cognitive scientists have all wrestled with the human tendency to behave in ways that are irrational and self-defeating.
After a spate of sewing needles being found in strawberries, the federal government has moved quickly to tighten penalties for those who sabotage fruit. But it is unlikely to be a strong deterrent.
It's easier to see how customers benefit from increased grid security than it is to justify making them pay for it.
Feb. 28 marks the 75th anniversary of Operation Gunnerside. A stealthy group of skiing commandos took out a crucial Nazi facility and stopped Hitler from getting the atomic bomb.
Recent terrorist attacks have heightened concerns about the security of nuclear plants. A former top U.S. nuclear regulator says security is weak at many sites worldwide.
The openness of the Internet gives an advantage to attackers – but what constitutes an act of war in the electronic world?