Journalism via video cam

American citizens are getting in the action! An article published in the Des Moines Sunday Register, Videos help fight police misdeeds, describes how New York police officers are being caught in the act. Civilians are arming themselves with video equipment to record police activities.
The article says in one week, three seperate videos show police officers using their batons in a violent manner, even knocking one protester off his bicycle in Times Square. Now remember everyone, we're innocent until proven guilty, so I hope this filming rage doesn't get too out of hand. I hope law enforcement officers don't get to the point where they are afraid to carry out their job, as necessary, for fear of someone seeing an act on film and portraying the officer in a negative way. On the other hand, if police officers were not doing anything wrong, they shouldn't have anything to worry about, right?
In our age of video altering programs such as photo shop, what's to stop someone from "doctoring" film and using it in a negative way against officers?
Norman Siegel, a former director of the New York Civil Liberties Union, tells protest groups that go out in public places to have someone in their group come armed with a video camera. This would aid the group, or single individuals, if problems occur and arrests and/or legal actions should take place.
This seems like pretty easy journalism to me. Just shoot events with your video camera and publish your film, whether it be on local or national news shows or as simple as YouTube.