In the near future, Fridrich's technique promises to find application in the analysis of scanned and video imagery. There it can be expected to make life more difficult for forgers, or any others whose criminal pursuits rely on the misuse of digital images.
But give it some time and the criminal scene will most likely find a new technique to get around it somehow..

But it does indeed sound like something very interesting to read more about.

cheers
f2B