ABSTRACT
Diamond, Jared Think again of those astronomers who beamed radio signals into Space from Arecibo, describing Earth’s location and its inhabitants. In its suicidal folly that act rivaled the folly of the last Inca emperor, Atahualpa, who described to his gold-crazy Spanish captors the wealth of his capital and provided them with guides for the journey. If there really are any radio civilizations within listening distance of us, then for heaven’s sake let’s turn off our own transmitters and try to escape detection, or we are doomed.
