A Thai medic checks bodies for forensic identity in Phang Nga province in southern of Thailand on Jan. 11, 2005. Thousands of people were killed in Thailand after a massive tsunami struck on Dec. 26, 2004. Pornchai Kittiwongsakul/AFP/Getty Images hide caption

toggle caption Pornchai Kittiwongsakul/AFP/Getty Images
After Disasters, DNA Science Is Helpful, But Often Too Pricey
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