Outside, the pilgrims continued walking in endless white spirals beneath the desert night.… By the time the first call to prayer echoed across the valley of Mina, more than 1.6 million pilgrims had already converged upon western Saudi Arabia. From the air, the pilgrimage resembled a living circulatory system. White streams of human bodies moved through geometric corridors beneath floodlights and drone surveillance. Trains arrived every few minutes. Cooling stations exhaled artificial mist into the desert heat. Security helicopters circled silently above the Grand Mosque while AI-assisted monitoring systems tracked crowd density in real time. In 2025 alone, over 420,000 workers and security personnel had been mobilized to manage the Hajj season. Colonel Faisal al-Harbi stood inside the command center near Mina and watched the screens without blinking. He had spent twenty-seven years in the Saudi security services. He knew that...