The Pentagon is keeping a close eye on what its troops post online, with special attention being paid to videos that show the aftermath of combat.
There is no specific policy that bans troops from posting graphic material.
But troops who have served in Iraq and Afghanistan are hearing the message that they should consider carefully what videos they upload to the web.
Sites such as YouTube and Ogrish.com have hundreds or thousands of clips from soldiers, some set to rock music.
Read this article from BBC Technology News and track the topic’s development on this blog. (UPDATE: The “Trophy Video.” War coverage goes viral despite the military’s wishes it wouldn’t.)