Those who want to be tested will be divided into two groups to compare counseling methods (client-centered vs. counselor-driven counseling). A small blood sample (2 to 3 tablespoons) will be drawn for genetic analysis. Test results will be provided in person at a second visit-this may take 6 months or more. A follow-up telephone call 2 weeks after receipt of the test results will address participants' questions and provide support. During a third visit, scheduled 6 months after receipt of the test results, participants will complete questionnaires evaluating mood, attitude, self-esteem, family interactions, cancer screening practices, and other factors. Finally, 1 year after receipt of the test results, participants will be contacted by telephone and asked about their feelings about the test and its outcome.