The video which shows an attack by US helicopter on a group of men moving through a square in Baghdad, killing dozen people in Iraq including two photographers of Reuters Namir Noor Eldeen, 22 and Saeed Chmagh, 40.
The video was made public by WikiLeaks, a group that promotes the leaking of information to fight government and corporate corruption.
According to the sources Bradley Manning who was positioned with the 2nd Brigade Combat Team, 10th Mountain Division, could face 52 years in prison.
Manning has been in custody in Kuwait for several weeks. He was turned in by a former hacker after allegedly confessing in online chats that he had leaked the video and classified state department cables to Wikileaks.org, which annotated the graphic footage and posted them on the web.