The facts are raw, documented – and unbearable. On the morning of October 7, 2023, while some were just waking up, others were recording – and live-streaming – the glee they took in the massacre. One world watched. Another rejoiced. In New York, Douglas Murray absorbed the words and images, then immediately set off for Israel. From that journey – and the abyss it laid bare – the British journalist and intellectual drew a furious yet lucid essay, On Democracies and Death Cults: Israel, Hamas and the Future of the West. But the book is not merely a cry of...