I can only hope this is a good sign, that the new leadership recognizes that sometimes drastic measures are needed. Metro has never shut down all underground operations like this for non-weather operations, and I can only hope this day provides them the information they need to tackle safety and improvement strategically and swiftly going forward. I realize buses are still running and the region is lucky to have a robust bus system, and things like the streetcar and the Circulator bus (which operates separately) are still going and in some cases increasing service. I am lucky, because I telecommute. I am lucky because when I was using metro (or technically a combo of bus and metro) to get to work, I wasn't hourly and had a flexible schedule.
All of this is to say. Be kind to DC area folks today. Be kind to each other. This is a day. And hopefully things will look normal tomorrow.