For example. a number of organizations serve families who’ve adopted children, usually girls, from China and other countries such as Korea. The a-China DNA Project has the lofty goal of not only creating a DNA database for matching adopted Chinese siblings, but also for anyone of Chinese ancestry. Co-directors Mary Coolbaugh-Murphy and Mary Ebejer clearly believe in the power of DNA.

"In closing, we know nothing about our children’s medical histories. However, contained in the tubes of their DNA, is a wealth of information that can benefit both them and people of Chinese descent around the world. If the predominant registry were to allow medical, social, anthropological, and psychological researchers from within the Chinese adoption community access to the anonymous (de-identified) DNA, we could learn so much about our children. We could learn about their genetic genealogy—not who their specific parents were, but who their ancestors were. We could learn if they are predisposed to heart disease, diabetes, and cancer. We could learn if those with attachment sensitivities have a genetic basis to their behavior, which combined with their early trauma of abandonment, led to their problems—and could start treatment with early detection. Not to learn from the wealth of information inherent in a DNA database would be so sad."

DNA tests will also play a role in the adoption of Guatemalan babies. The US government is now requiring two DNA tests for all adoptions. First, to match the birth mother with the child then a second to confirm the identity of the child when the adoptive parents are ready to leave Guatemala to return to the US. The new requirement is a response to child traffickers and baby snatching.

In another Central American country, children adopted from El Salvador in the 1980’s during their civil war are using DNA tests to find their lost families. As part of the Pro Busqueda association, families are giving blood samples to aid in DNA matching of missing children and parents. Approximately 800 samples are currently stored and almost 70 families have been reunited using DNA. The News Hour with Jim Lehrer featured Angela Fillingim’s search for her biological mother in El Salvador. Other countries where DNA has been used to reunite families include Vietnam, Rwanda, Chile, Argentina, and North and South Korea.