Genetic testing in medicine

Genetic testing raises serious issues for medicine, public health and social policy regarding the circumstances under which the test should be used, how the test is implemented and what uses are made of its results. Should people be allowed to choose or refuse the test, or should it be mandatory, as newborn screening in some states? Should people be able to control access to the results of their tests? If test results are released to the third parties such as employers or insurers, what protections should be in place to ensure that people are not treated unfairly because of their genotype?