Discrimination has taken many forms, and it will be a remarkable departure from our past experience if genetic predisposition doesn't suffer the same fate. There is no reason we cannot preserve personal privacy at the same time while we utilize the newfound information to help eradicate incipient diseases. But under patent laws as they were for decades, you can only patent an invention. A patent should not be given to any firm that worked to obtain the information contained in the human genome. Most likely this work is not yet finished and further scientific research is needed.
Discrimination based on information obtained from a person's DNA is indeed a possibility.
We should attempt to prevent discrimination in particular when it curtails equal opportunity for jobs or education. The sharing of an individual's genome should be considered illegal except for medical purposes. At the time that a treatment for a disease is discovered based on the genome information, such a treatment could receive a patent. In such a case, the health insurance programs will change. This treatment could be less or more costly than the previously available treatment.