On a visit to Jerusalem in 2005, Rabbi Rosenberg entered into a mikvah in one of the holiest neighborhoods in the city, Mea She'arim. "I opened a door that entered into a schvitz," he told me. "Vapors everywhere, I can barely see. My eyes adjust, and I see an old man, my age, long white beard, a holy-looking man, sitting in the vapors. On his lap, facing away from him, is a boy, maybe seven years old. And the old man is having anal sex with this boy."

Rabbi Rosenberg paused, gathered himself, and went on: "This boy was speared on the man like an animal, like a pig, and the boy was saying nothing. But on his face—fear. The old man [looked at me] without any fear, as if this was common practice. He didn't stop. I was so angry, I confronted him. He removed the boy from his penis, and I took the boy aside. I told this man, 'It's a sin before God, a mishkovzucher. What are you doing to this boy's soul? You're destroying this boy!' He had a sponge on a stick to clean his back, and he hit me across the face with it. 'How dare you interrupt me!' he said. I had heard of these things for a long time, but now I had seen."