"In my opinion, to claim the fertilized ovum is a 'complete human being' defies all logic. It is the equivalent of declaring an acorn to be a large mature oak tree," writes Dudley Wells.
"It is a scientific fact that the human egg, after fertilization, is alive and developing. It is not inanimate matter, nor is it just a mass of cells with no unity or goal," writes David M. Crane.
Inventor Steve Jobs called death the single best invention of life. But when we begin interfering with that perfect invention, the guardrails become harder to define.