A scream comes across the sky, and the volleyball players on North Avenue Beach in Chicago, the United States stop at once and instinctively duck and stare out across the sand, as if a bomb went off in the distance.
A bomb, in a sense, had gone off. A bomb packed with anxieties and loathing — a scream, in fact. Followed by more screams, each one a few minutes apart, released by the 150 or so people lined up on the North Avenue jetty, facing the skyline.
