Photography has the power to not only document the horrors of the world, but also bear the mark of its maker, for better or worse. It is not simply opening and closing a shutter.

Take this evidence that the SS photographer, Friedrich Franz Bauer, implicated himself with. He usually made propaganda of concentration camps to normalize them against any moral outrage. This was part of the Nazi regime's policy to beautify their camps and "Jewish settlements."

Here, Bauer takes photos of innocent children in a psychiatric hospital. He knew full well they would face forced euthanasia during Aktion T4. But history now sees this photo as a criminal act, a witness to the worst parts of humanity, as well as a bystander who did nothing to stop the rise of modern evil. Again, photography is not merely clicking a button. It has the power to echo throughout history.