Also: isn’t the “definition of personhood” kind of a red herring?
The real question is: how do we balance two conflicting interests: that of a mother to terminate an unwanted pregnancy, and that of the state to protect the unborn? In other words, it’s a legal question, not one of science.
Science can help out, to be sure; medicine has given us a useful threshhold in the development process, known as “viability.” The age of viability is of immense legal interest in the debate, but it is an artificial concept.
(Before modern medicine, babies born prematurely, even very close to full term, had a very high mortality rate…)
For all commonplace legal purposes, “personhood” begins at birth. Your age is calculated from date of birth for all other Constitutional purposes.
(Do we really want to get so Talmudic as to define “birth” as in the story of Jacob and Esau? Esau was “born first” because his hand popped out, and then back in, even though Jacob was the first to be fully delivered…)
Most Americans are able to accept the compromise involving trimesters (another entirely artificial legal boundary.) In the First timester, the mother’s interests are paramount. In the second, there are limitations. And in the third, the state’s interests are most prominent.
Sometimes, the law is an ass… But only the legal system can “define” personhood in terms relevant to this discussion.
The argument about infanticide is also pushed aside. Once the baby has been born, the mother can have no further interest in terminating the pregnancy. The pregnancy has been terminated, by delivery. The issue is, by definition, moot.
(And, of course, in practical terms, once the baby is born, other options exist – adoption, for instance – that were not possible earlier. Perhaps science will solve that problem some day, and “abortions” will be replaced by “fetal transplants.”)
(For my part, I can’t view even a 6 month old baby as a “person,” because I can’t discern his/her “personality.” But that doesn’t mean that it’s okay to kill him/her!)
ftr, I really like Mangetout’s riddle of the beard!
Trinopus