My job is to provide the president with the richest possible consideration, so that he knows what is at stake in whatever decision he makes.

In the case of abortion, one pits the life of the fetus against the interests of the pregnant woman.

Perhaps you could sympathize with those who seek to replace a dead child with a copy, or to copy a parent or a relative or even a celebrity.

Technological innovation is indeed important to economic growth and the enhancement of human possibilities.

There's an ancient tension between wanting to savor the world as it is and wanting to improve on the world as given.

We may simply not be wise enough to do some of the kinds of engineering things that people are talking about doing.

Cloning represents a very clear, powerful, and immediate example in which we are in danger of turning procreation into manufacture.