The Personal Genome Project, spearheaded by George Church, the Director of Harvard's Center for Computational Genetics, aims to recruit 100,000 people to offer up their DNA and personal life histories, all in an effort to further knowledge of human genetics and why we get or don't get diseases. Just 3:20. Don't miss the new episode of NOVA scienceNOW, airing Wednesday, July 2 at 9pm on PBS.