I've written on several occasions about paternity law, and the presumption that a child born during a marriage, is the legal child of the husband (regardless of biological ties). The law may be slowly evolving on that point. In Kentucky, the state supreme court recently held that a biological father could assert paternity rights on his child, whose mother is married to another man. The opinion notes that in an age with DNA testing to a scientific certainty, it makes no sense to rely on legal presumptions instead. I suspect someday Maryland will follow suit as well.
Read about it on the Wall Street Journal Law Blog here.
Read Jonathan Turley's take here.