Good to know that the tech is working to stay on top of stuff like that.
Canon's had that option out for a few years now. Not sure about Nikon, but they probably do as well. The downside is that it isn't available for their mid-priced camera bodies and that is where a lot of news organizations choose to spend their money.
Still, there is embedded data in every image file that shows when, where, and sometimes by whom the photo was taken. Although some photo editing software (not Photoshop AFAIK) can remove that data, a good photographer always keeps copies of the originals for these kinds of situations.