Prenatal testing can be a multi-edged sword. Usually, test results are reassuring, which puts expectant parents’ minds at ease. But some people argue that because birth defects are rare, these tests in most cases cause undue stress; others argue that they allow people to create “designer” children. Then there are the parents who discover very real, sometimes dire, problems with their babies and face the decision of whether to keep or terminate a pregnancy. Testing is a difficult and confusing issue, and what’s right for one family may be entirely wrong for another.