Two Berkeley scientists explore the potential of a revolutionary genetics technology capable of easily and affordably manipulating DNA in human embryos to prevent specific diseases, addressing key concerns about related ethical and societal repercussions

• Prologue : the wave
• Part I. The tool. The quest for a cure
• A new defense
• Cracking the code
• Command and control
• Part II. The task. The CRISPR menagerie
• To heal the sick
• The reckoning
• What lies ahead
• Epilogue : the beginning