Genome editing[1] is a powerful new tool for making precise additions, deletions, and alterations to the genome—an or-ganism’s complete set of genetic material. In recent years, the emergence of highly versatile genome-editing technologies has provided investigators with the ability to rapidly and economically introduce sequence-specific modifications into the genomes of a broad spectrum of cell types and organisms.

[1]Medicine and Biomedical and Behavioural Research Splicing Life: A Report on the Social and Ethical Issues of Genetic

  Engineering with Human Beings 1982 [http://www.bioethics.gov/reports/ past commissions/splicinglife.pdf.]