A gram of bone. If well-preserved and accompanied by the right genetic reference samples, it's enough to put a name and a face on an unknown soul thought lost to the ages.
In the coming months and years, experts in Dover and Hawaii will analyze nearly 400 such fragments, and the remains from which they're taken, as they launch a project with particular resonance this Memorial Day: identifying the sailors and Marines killed on Dec. 7, 1941, when Japanese attackers sank the USS Oklahoma. For the past 65 years, those remains have been buried as unknowns in graves at the National Memorial Cemetery of the Pacific in Honolulu.
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