In his May Diary today, John Derbyshire is quite right that the realities of IVF today make it a much a harder, emotional debate to have–we’re not talking about moral theories, we’re talking about human lives: lively toddlers, sick parents…(and, yes, frozen embryos). But the fact that there are, indeed, “decent, thoughtful, well-educated people” intimately involved with assisted reproduction, starting families with its assistance–many of whom “must have created 75 embryos to get the two children we are now raising”–should, I would think, make us think even longer and harder before we jump into the next point of no return.