This may be a long shot, but we discussed Ode on a Grecian Urn in English recently and it somewhat relates to the point Nachteway makes about how photography reveals the truth to the general public. In Keat's poem, he discusses how although people may die and be forgotten about, an image lasts forever. Its passion and its ability to provoke thought will be immortal and can never be taken away. This relates to the images Nachteway used in his presentation. Although Nachteway spoke about each picture when it appeared on screen, he almost never gave his own opinion on it, merely a description of what was going on.
This can be seen in Keat's poem, as he describes the people on the urn, and the people who might have used the urn, but he never concludes anything about them, His last two lines "Beauty is truth, truth beauty--that is all ye know on earth, and all ye need to know". This conclusion leaves interpretation up to the reader. What does the reader consider beauty to be? How can that be related to truth? In relation to Nachteway's photographs, he provides almost the same conclusion as Keats. He says that photography provides people with the truth about what is going on, but lets them decide their own interpretation of why he took the picture.
Photography or imagery is an interesting outlet for art and interpretation. It is a constant form, one that cannot be altered, one that is always true. Nachteway and Keats draw this conclusion from their own experience and let the viewer decide about what they have provided them with. Although both of them give their description, it is up to the viewer to come up with their own thousand words on something. The possibilities for interpretation in photography are almost endless and both of these men do a good job exposing that point.