http://news.lycos.com/wired/story.asp?section=Science&storyId=1088693True age revealed in tooth enamel
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A permanent record of the fallout from above-ground tests is embedded in tooth enamel and allows scientists to estimate the age of a person at the time of death more precisely.
Jonas Frisen, of the Karolinska Institute in Stockholm, who developed the method, said it has already been used to help identify people who died in the Indian Ocean tsunami last year.
American researchers are also offering to determine the age of unidentified victims of Hurricane Katrina with the technique.
"It is a simple method to determine the age of an individual by measuring the level of the compound in teeth," Frisen said in an interview.
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that's just above ground testing - think what our military is bringing home and spreading around.