"The 'bring it on, the more information the better' attitude we have about genetic testing could really come back to bite us, " says Ellen Matloff, director of cancer genetic counseling at the Yale Cancer Center.

CNN: Should I test my breasts?

Remember genetic testing is about risk and probabilities -- and the future is shaped by your genes and your lifestyle -- facts that counselors can help make clear.

CNN: Get ready for the risks of genetic testing

Think about what this might mean down the road with advances in genetic testing.

CNN: Clinton's September 17, 2007, speech on health care