Technology and the Internet have become powerful weapons in the search for missing and abducted children, raising recovery rates of the most serious and urgent cases in the United States to more than 90 percent.

Last year, some 723,000 children were reported missing in the United States. Many cases are children who go astray for short periods and are quickly located. But around 160,000 children a year are abducted by other family members, usually embroiled in child custody disputes. A small number, probably 4,000 to 5,000, are abducted by non-family members, many for sexual purposes.
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