That's clever, but Moscow subway is open between 4:45am and 1:00am Even back then? Even so, I bet the authorities could simply close the system down early, cl

That's clever, but Moscow subway is open between 4:45am and 1:00am Even back then? Even so, I bet the authorities could simply close the system down early, close off stations as needed. Still, I suspect the builders were not worried about subway patrons seeing trainloads of excavated dirt. They were worried about overhead satellites.