What happens to embryos created by IVF but not implanted is a fraught question for many, but it gets more complicated when those storing the embryos can’t contact the couples.

See Embryos in limbo – dilemma for clinics – Religion and beliefs – NZ Herald News. (It’s been filed in the Herald’s “Religion and beliefs” section but they probably need a more general ‘ethics’ section as it impacts on more than just religious beliefs”)