There's been some pushback from experts in the field of forensics about this study, who say the paper alone won't change the way we interpret fingerprints.
And a lot of times your clues are cold, but really we reconstruct it the same way a forensic scientist would go in and reconstruct a mystery surrounding a murder case.
In fact, certain sutures do not begin to fuse until 68-72 years of age, which is why the positioning of bones of the skull can be useful information in forensics and archeology.
Today there is no body representing Vietnam at the Tomb of the Unknowns, and thanks to improved forensics, there will likely never be an unknown from Iraq or Afghanistan, or any future war.