As an undergraduate, Fr. Tad earned degrees in philosophy, biochemistry, molecular cell biology, and chemistry, and did laboratory research on hormonal regulation of the immune response. He later earned a Ph.D. in neuroscience from Yale University, where he focused on cloning genes for neurotransmitter transporters, which are expressed in the brain. He worked for several years as a molecular biologist at Massachusetts General Hospital/Harvard Medical School. Father Tad studied for 5 years in Rome at both the Gregorian University and the Lateran University, where he did advanced work in dogmatic theology and in bioethics, examining the question of delayed ensoulment of the human embryo.
He writes a monthly newspaper column on bioethics that is nationally syndicated to more than 40 diocesan newspapers in the U.S., and which has also been carried by newspapers in England, Poland, and Australia. He has testified before members of the Massachusetts, Wisconsin, Virginia and Oregon State Legislatures during deliberations over stem cell research and cloning. In 2020, he was appointed to the National Institutes of Health Fetal Tissue Research Ethics Advisory Board. He has done commentaries for numerous media outlets, including NBC Nightly News, CNN International, ABC World News Tonight, National Public Radio, the Wall Street Journal, the Dallas Morning News, and the New York Times.
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