My Canon Lawyer Ed Peters writes on his Canon Law website:
"Alfonso Cardinal Lopez Trujillo, the outspoken president of the Pontifical Council on the Family, has asserted that "destroying human embryos is equivalent to abortion"; therefore, he says, those directly involved in such deeds are liable to the canonical penalty established for abortion, namely, excommunication (1983 CIC 1398). That the cardinal stands on solid biological and moral grounds in equating deliberate embryo destruction with procured abortion is beyond serious question.
"What I want to ask is whether he stands on solid canonical grounds as well. Visit http://www.canonlaw.info/2006/06/excommunication-for-deliberate-embryo.html "