Ghosts of Babi Yar: A Visit to the Ravine Where Nazis Murdered 150,000

KYIV, Ukraine—Seventy-four years later, I reached up and broke off a small piece of a branch that was long and gray. It was bent in the strange, contorted ways it had blindly grown to look for light here at the cold bottom of the ravine, where the forest canopy above had turned the sunny spring day into dark winter’s night.