"Watching the World Change" is a unique and powerfully affecting account of the most universally observed news event in human history: the terrorist attacks on the World Trade Centre on September 11, 2001. David Friend tells the stories behind the images that altered our sense of our world forever, from the happen stance shots taken by standers as the first tower was struck to the scene of three firemen raising the Stars and Stripes at the site that would soon be known as Ground Zero. He gives us the experiences of the photographers and rescuers, victims and survivors. He shows how advances in television, digital photography, and the Internet produced an effect whereby more than two billion people saw the terrible events as they happened. He explores the controversy about whether images of 9/11 are redemptive or exploitative, and he shows how photographs help us to witness, to grieve, and finally to understand the unimaginable.