Washington, DC

“Dear PoPville,

Question for the PoPville hive mind: On a few houses in DC I’ve seen these red lights. I’ve never seen them lit up. They’re usually the height of a second-floor window near the front door. I polled friends and one suggested it’s an old fire alarm, another that it’s an old security system. Google is letting me down, though maybe it’s a completely obvious thing I’m missing.

I’ve never seen them in another city.”

Ed. Note: I always assumed they were part of an old fire alarm alert system, right?

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