“The first time it was reported that our friends were being butchered there was a cry of horror. Then a hundred were butchered. But when a thousand were butchered and there was no end to the butchery, a blanket of silence spread. When evil-doing comes like falling rain, nobody calls out ‘stop!’”

These lines, written by the German poet and playwright Bertolt Brecht, came to me as I heard the horrifying speeches delivered by Hindu nationalists during a religious conference this month, when leaders issued direct calls for genocide against Muslims.

“If 100 of us are ready to kill two million of them, then we will win,” said Pooja Shakun Pandey, a leader of Hindu Mahasabha, a militant organization, at a conference in the city of Haridwar, 150 miles north of New Delhi. “Be ready to kill and go to jail.”