We in First World countries are fortunate, Kitcher says, that in recent years we've only had to deal with genetic and lifestyle-related diseases rather than major killers like malaria or tuberculosis. That could change, he adds. Back to Manipulating Genes: How Much is Too Much? Back to Manipulating Genes: How Much is Too Much? Watch the Program Here | Our Genetic Future (A Survey) Manipulating Genes: How Much is Too Much? | Understanding Heredity Explore a Stretch of Code | Nature vs Nurture Revisited Sequence for Yourself | Journey into DNA | Meet the Decoders Resources | Update to Program | Teacher's Guide | Transcript Site Map | Cracking the Code of Life Home Editor's Picks | Previous Sites | Join Us/E-mail | TV/Web Schedule | About NOVA Watch NOVAs online | Teachers | Site Map | Shop | Search | To Print PBS Online | NOVA Online | WGBH © | Updated April 2001