China, in an effort to control their human population, instituted a program some years back limiting the amount of children a family could have to one. Whether that is a good or bad idea is something up to independent debate, there is a more profound problem involved with it.
You see, there is no social security program in the PRC; the senior citizens of the country are cared for by their oldest son. A program that limits childbirth to one has with it the burden of limiting the ability to care for the elderly. The result of this is that many families reject their daughters, since they are unable to keep the family or care for the parents after growing up, and sending them to orphanages.
The social policy that drives this also is something open to debate, but there is something available to those who are willing. The People's Republic of China has an adoption program that will allow these otherwise unwanted girls (and some developmentally challenged boys) to be adopted by families in other parts of the world, such as here in the United States. I know a couple agencies who work with China to facilitate the process for families who either can't have children of their own, or desire to provide a home to a girl who otherwise wouldn't have one.
Should anyone have any interest in this, or wish to debate the Chinese policy, feel free to comment or you can e-mail me at email@example.com for more information.