The brief policy statement on embryonic stem-cell research that is to come before the U.S. bishops at their June 12-14 meeting in Orlando, Fla., is designed to set the stage for a later, more pastoral document explaining why the Catholic Church opposes some reproductive technologies.

"While human life is threatened in many ways in our society, the destruction of human embryos for stem-cell research confronts us with an issue of respect for life in a stark new way," says the statement drawn up by the Committee on Pro-Life Activities of the U.S. Conference of Catholic Bishops.

Although the topic of embryonic stem-cell research has been raised in several broader USCCB documents and has been the subject of testimony and many letters to Congress, there has never been a formal statement on the issue from the full body of bishops, said Cardinal Justin Rigali of Philadelphia, chairman of the pro-life committee, in an introduction to the draft document.

"The issue of stem-cell research does not force us to choose between science and ethics, much less between science and religion," the document says. "It presents a choice as to how our society will pursue scientific and medical progress."

The policy statement seeks to refute three arguments made in favor of permitting stem-cell research that involves the destruction of human embryos. Proponents of embryonic stem-cell research argue:

-- "That any harm done in this case is outweighed by potential benefits.

-- "That what is destroyed is not a human life, or at least not a human being with fundamental human rights. ...

-- "That dissecting human embryos for their cells should not be seen as involving a loss of embryonic life."