BEIJING DIARY: A segmented city, ideal for pandemic Olympics

At a hotel in Beijing’s Olympic Park, two signs compete for attention, draped across a fence against a deep blue backdrop. “Together for a shared future,” says one, trumpeting the 2022 Winter Games’ official slogan. Directly to its left, in big white letters, another warns: “Closed loop area. Don’t cross the line.”“You can’t go that way,” says a black-clad guard outside the China National