So much for technology helping us be more verifiably honest: http://hanson.gmu.edu/moretrue.pdf
Now it looks much more like an arms race.
I see it as a cat-and-mouse game, like the spam problem.
Or even better is the problem of Photoshopping things which people have come up with some I guess fairly good tool to counter:
...“Error level analysis (ELA) works by intentionally resaving the image at a known error rate, such as 95%, and then computing the difference between the images. If there is virtually no change, then the cell has reached its local minima for error at that quality level. However, if there is a large amount of change, then the pixels are not at their local minima and are effectiv
"Arturo Castro's real time face substitution technique"
Link/Videos: http://www.notcot.org/post/43233/
An HN comment I found very interesting:
From: http://news.ycombinator.com/item?id=3022929
Hacker News discussion thread: http://news.ycombinator.com/item?id=3022479