The local spanish paper drips with blood with the shots they show. It depends on the paper. I think people should be able to see what a accident really looks like and would understand what Ems, Police and so on see everyday and maybe would understand there point of view when it comes to enforcing safety issues. As long as viewer know what there gonna get when they read a paper photos like these should be ok.
I remember a few years back there was a story about a girl who was driving a Porsche through a toll gate, 2007 I think. Anyway, the car had hit a divider and split it down the middle as it was going over 100 mph. Consequently, the young girl who was driving (16 y/o IIRC) was also split down the middle. There were some very graphic photos of this that had been leaked by one of the officers. They showed her head peeled in half down the middle. It looked like something out of a body works display only done with a hatchet and not cleaned up. Chunks of blood, bone, hair, and brain matter. The problem was... her parents heard about those photos. Granted, it was their choice to look... but they did look. Imagine that image haunting you the rest of your life.
The moral of the story- regardless of whether or not the victim is "identifiable" is sometimes irrelevant. If you're posting pictures of a specific accident right after it's occurred, you risk showing them to someone who was associated with the victim. That's not to say that these photos are doing that... but just to point out that just because you can't see someone's face doesn't mean that it's alright (ethically, if not legally) to post these types of pictures.