Where once snappers would labour in dark rooms with chemicals and film to bring images to life, today even amateur photographers can capture an image and send it around the world within seconds. The sheer number of pictures taken, preserving scenes that would previously often not have been photographed, can be a powerful tool for spreading the truth and even holding authorities to account.
But there are also risks, not least for the people taking and distributing those images. Unbeknown to many of us, each digital camera has what can be regarded as its own fingerprint, an indelible stamp caused by the way it captures light and turns it into an image…
