gattaca

Amniocentesis and chorionic villus sampling remain the gold standard for detecting genetic abnormalities such as Down syndrome in a developing fetus. But because these procedures are invasive and can cause miscarriage, their use is normally only advised for women with known risk factors. Now a handful of emerging tests suggest that in the near future, it may be possible to detect genetic defects with a simple blood draw from the mother.

1997's 'Gattaca' featured a bleak future world ruled by bio-engineered superhumans -- an outcome that no longer seems far-fetched.

According to consumer watchdog Privacy International, Google conducts "comprehensive surveillance" and embodies an "entrenched hostility to privacy." Microsoft, though a little less invasive, is still Microsoft. What do they have in common? Both want you to trust them with your DNA.

Assuming you believe it's okay to abort a fetus who would grow up with a severe disease or disability, using genetic screening to test fetuses for such defects is probably acceptable. But what about tests for conditions that might not be severe?