Ethicists Debate Fate of Abandoned Frozen Embryos
At the John Paul II Shrine on the saint’s feast day, Haas and Rex argued opposing interpretations of Donum Vitae and Dignitas Personae on prenatal adoption.
On Oct. 22, the feast of St. John Paul II, the John Paul II Shrine in Washington, D.C., hosted a debate on whether Catholic couples may morally adopt frozen human embryos left by in vitro fertilization.
John Haas, president emeritus of the National Catholic Bioethics Center, and Elizabeth Rex, associate scholar at the Charlotte Lozier Institute, presented opposing arguments. The pro-life group Defend Life organized the event, which followed a Mass honoring the saint.
Haas contended that embryo adoption is morally illicit. Transferring a frozen embryo into the womb of an unrelated woman, he argued, is an artificial act that violates the Church’s teaching on the meaning of sexuality within marriage. He also stressed that thawing endangers the embryos themselves. Citing the 1987 instruction Donum Vitae, Haas recalled that spare embryos face an “absurd fate,” with no licit means of survival once they have been generated outside the marital act. In his judgment, indefinite freezing remains the only moral course available.
Rex replied that neither the Vatican nor the United States Conference of Catholic Bishops has formally ruled against embryo transfer or prenatal adoption. She held that placing an already existing embryonic child in a willing mother’s womb can be an act of rescue and mercy, provided it is carefully distinguished from any endorsement of IVF.
An Unsettled Question in Catholic Bioethics
The 2008 instruction Dignitas Personae affirmed the inviolable dignity of every frozen embryo while expressing reservations about proposals for prenatal adoption. The document left the practical path forward unresolved, underscoring both the evil of producing human life in the laboratory and the duty to treat each embryo as a person.
The exchange highlighted a dilemma that continues to press on Catholic families and pastors: thousands of embryonic human beings remain abandoned in cryogenic storage across the country. The Church condemns IVF without ambiguity. Yet once those children exist, moral theologians still dispute whether gestational adoption can be separated from the illicit technique that brought them into being.
Both speakers anchored their positions in fidelity to the Magisterium and the teaching on life associated with St. John Paul II. Their disagreement concerns not the dignity of the embryo—which neither contested—but the liceity of the means proposed to save children already conceived.
Defend Life framed the evening as catechesis for a Church that must defend every human life without blessing the industry that discards so many of them.