A Terrorist Plot Canceled the Show. But We Swifties Found Each Other on Cornelia Street.

In her song “Cornelia Street,” Taylor Swift describes a nascent relationship on the brink of failure because neither party is willing to take the first leap: we were card sharks, playing games. She is about to end things, when all of a sudden, he proclaims his love—or, as Swift puts it, you showed your hand.

In Vienna, Austria, where Taylor Swift was to …