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Today, Sherlock Holmes would be a molecular biologist. For each of us, save
identical twins, carries a unique genetic pattern in our DNA. It would be a
case of “Elementary, my dear Watson!”

IN July 1977, Monica Lemos de Lavalle, by then eight months’ pregnant, was
abducted by the security forces in the province of Buenos Aires, Argentina,
with her husband and their 14-month-old daughter, Maria. Five days later,
Maria was abandoned by her abductors near the house of her maternal
grandmother. The fate of the young couple, and the baby Monica carried,
remained unknown. Then a man just released…

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