In vitro fertilization has resulted in some ten million births since its first in 1978.  Well over one million embryos conceived in this way still reside in frozen storage.  Ethicists and theologians continue to debate IVF.   Pastor Salemink of Lutherans For Life (www.lutheransforlife.org) considers how IVF works, the dangers it involves, how to regard to the children and parents it creates, and some alternatives.