The Map Room and my other sites will be offline for several hours while my hosting provider’s building management performs emergency maintenance; details here and here. The outage is expected to take place Sunday morning between 2:15 EST/7:15 UTC and 7 AM EST/noon UTC. Do not panic.

Update, 2/25 at 9:49 AM: Came back at about 9:30 AM EST this morning — about 2½ hours later than expected, due to a core router issue.