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DC Metro Closes For Emergency Safety Inspection (nbcwashington.com)
McGruber writes with NBC's report that Washington, DC's Metrorail system has been completely shut down for at least 29 hours, so crews can check 600 underground jumper cables:
A problem with those jumper cables caused a fire at the McPherson Square station early Monday and was also the cause of a fatal smoke incident in January, 2015, that killed one person and injured others. The safety checks could have been delayed until the weekend or conducted at night over about six days, officials said. But if the system were kept open, a public announcement about the risk would have to be made. That would have put passengers, and Metro, in the awkward position of publicly acknowledging that it was operating despite being aware of a potentially deadly safety problem. Metro also would have been liable in the case of any crashes or calamities. The shutdown prompted the Washington Post to publish an editorial titled It's official: Metro is a national embarrassment."
WMATA did an inspection of the jumper cables back in February 2015 and then replaced around 120 or so. They probably thought the problem was resolved at that point. Unfortunately, a new fire earlier this week revealed that the problem has not been resolved.
Nautical miles. I assume...
No, nautical miles are more commonly known as knots, so the appropriate abbreviation is "km". I see it all the time, especially in Europe, where they use km for almost everything.