Answering the question "Where did I come from?"

The New York Times had an article last weekend about the additional complexities of answering a child's question "Where did I come from?" when a surrogate is involved. No matter what technology was used to conceive a child, parents are encouraged to communicate to children that no matter how they came about, they are with the parents they are supposed to be with. And with more and more surrogate pregnancies, more families are going to consider just how they will communicate their unique story with their children.