A makeshift memorial  in Rochester, where Daniel Prude was restrained by police officers. Photograph: Adrian Kraus/AP.

A black man died of asphyxiation after a group of US police officers put a hood over his head then pressed his face into the pavement for two minutes.(...)

Snow blanketing Prospect Park in Brooklyn, in January 2014. Forecasters expect Wednesday’s high temperature to be minus 25 degrees Celsius in Chicago and Minneapolis. Photograph: Todd Heisler/The New York Times

A blast of Arctic-chilled air from the polar vortex brought dangerous, record-setting cold to a wide swath of the eastern United States on Tuesday, s(...)