There's a pretty good site that seems to be reputable (marketed as "uncensored news" where soldiers in the Middle East upload their in-combat footage - that site has also shown beheadings and some of the atrocities in Chechnya.

Anyway, I've seen most of them and was pretty haunted by one or two at the start. Man's inhumanity to his fellow man has to be seen to be believed. But this sort of thing does go on in the world every day under our noses. It seems foolish to me to pretend it doesn't, to try to live in a little bubble and think that the worst that might ever happen to you is a scrap outside Supermac's on O' Connell Street on a Saturday night. I think news channels should consider showing stuff like that so we can be collectively abhorred by the animals who commit these acts.