The Ministry of Truth is hard at work.
The level of discussion on Slashdot has really sunk (even on pure technology issues), but this stuff is important. That is: Media silently redacting digital documents (video, web, whatever) to suit ...? Who exactly? I don't know, but it would certainly seem to be their corporate owners.
We need a standard for tracking revisions of digital media. This standard would contribute to the overall definition of what it means to "publish" using modern technologies.
Established media has no room to be pointing fingers at bloggers and other new media sources when they are doing stuff like this and seem to have zero plan for how not to do it. I won't be surprised if newer information sources get a handle on this before the old school.