I recall being woken by the sound of tanks moving down the Avenue of Eternal Peace. It was 5 o clock on the morning of 4 June. Tanks, APCs and troop trucks were sweeping down the avenue. Citizens ran for cover. Helicopters hovered above. There were reports of weapons being fired in other parts of Beijing. Foreign media claimed that Chinese troops had fired into the crowds with several hundred casualties. More than three decades later, the Tiananmen...