“I am the grandson of Holocaust survivors,” Kushner wrote in the op-ed, published yesterday in the newspaper he owns, the New York Observor. His grandparents, he wrote, escaped from the occupied Belarus ghetto Novogroduk in the fall of 1943 and hid out in the woods, where they lived off the land for most of the winter.On the night before Rosh Hashana 1943, the 250 Jews who remained of the town’s 20,000 plotted an escape through a tunnel they had painstakingly dug beneath the fence. The searchlights were disabled and the Jews removed nails from the metal roof so that it would rattle in the wind and hopefully mask the sounds of the escaping prisoners.My grandmother and her sister didn’t want to leave their father behind. They went to the back of the line to be near him. When the first Jews emerged from the tunnel, the Nazis were waiting for them and began shooting. My grandmother’s brother Chanon, for whom my father is named, was killed along with about 50 others. My grandmother made it to the woods, where she joined the Bielski Brigade of partisan resistance fighters. There she met my grandfather, who had escaped from a labor camp called Voritz. He had lived in a hole in the woods—a literal hole that he had dug—for three years, foraging for food, staying out of sight and sleeping in that hole for the duration of the brutal Russian winter.