"The Double-Edged Helix" explores the impact of recent genetic discoveries on both different population segments and society as a whole. The authors address the medical and ethical implications of the new technologies, outlining potential positive and negative effects of genetic research on minorities, individuals with disabilities, and those of diverse sexual orientations. Presenting a wide array of perspectives, this book emphasizes the need to ensure that research into genetics research does not result in discrimination against people on the basis of their DNA.