Ground zero

On September 11, 2001, a man drifts in a boat off lower Manhattan as the twin towers burn. He removes a small box from his pocket and presses a button. As he waits for the south tower to collapse, he thinks: The vast majority will blame the collapse on the crazy Arabs who hijacked the planes and the Islamic extremists who funded them, the obvious choice. A few will notice inconsistencies and point fingers elsewhere, blaming the government or Big...