I understand it's war and not some formal event. Crazy and often horrible **** happens. However, considering our prescence in Afghanistan involves as much handling PR and looking good as it does actual combat, I think this hurts our objective.
Sending thousands of infantry is good for destroying stuff but terrible for COIN operations which really needs SF.
Since the video is down here's one from Yahoo. http://news.yahoo.com/blogs/envoy/pentagon-condemns-alleged-marine-misconduct-graphic-video-170756596.html
That is of course true, I don't know we trained our soldiers to be this stupid, taking a video of this whole incident and post it on the web.