The issue is one of the most profound we humans have ever faced. For the first time in the evolution of life on this planet, a species has developed the capacity to edit its own genetic makeup. That offers the potential of wondrous benefits, including the elimination of many deadly diseases and debilitating abnormalities. And it will someday offer both the promise and the peril of allowing us, or some of us, to boost our bodies and enhance our babies to have better muscles, minds, memory, and moods.
