Recent empirical work has shown that adopted children are more vulnerable to a host of psychological and school-related problems compared to their non-adopted peers. The rate of referral of adopted children to mental-health facilities is far above what would be expected given their representation in the general population. However, our understanding of the basis of these problems remains unclear. In this work, David Brodzinsky, who has conducted one of the largest studies of adopted children, along with Marshall Schechter, a child psychiatrist, has brought together a group of leading...