WASHINGTON, D.C. -- Newly released Pentagon documents show that Air Force officers debated briefly about burial at sea before concluding that 1,321 unidentifiable fragments of remains from the 9/11 attack on the Pentagon should be treated as medical waste and incinerated. A string of emails running from Aug. 5-7, 2002, reveal that an unidentified Air Force colonel suggested scattering the already cremated remains at sea. A second official - a civilian - said it may be appropriate to also have witnesses and a chaplain present. Their arguments that the 9/11 remains weren't just normal waste were rejected by others who concluded the material was medical waste and should not be treated like human remains. The emails were among nearly 2,000 pages of documents released by the Pentagon on Friday detailing operations at the mortuary at Dover Air Force Base in Delaware, investigations into problems and mishandling of war dead and other remains there and records about the disposal of body fragments. In the string of emails titled "Group F bio waste," one colonel said, "I do like the idea of spreading the ashes at sea in that it is a neutral arena." And the colonel asks for written direction to set up the sea burial. The response, from another unidentified official, said that Personnel Command at the military's Mortuary Affairs said that the contract says that no medical waste can be returned to the military services. And that "powder and ashes from the incineration of the material and the containers that were used for the burning is to be disposed of as normal waste." The email continued, "We should not be attempting to spread the residue as sea, as it could possible (sic) send a message to the next of kin that we are disposing human remains and that is not the case." And the final conclusion was to immediately dispose of all the material. A colonel acknowledged the decision, adding only that "my point, as you are aware of, is that Group F is not your normal set of medical waste." The response, from a civilian, said "totally agree" and said the decision was coordinated with higher headquarters' officials. The civilian added, "Understand Group F was special." The final email suggested that some may have believed this was a decision that might be challenged later, as it warned other recipients to keep the email record "as proof of our coordination."