A house is burning and on the brink of collapse. There is only time to rescue, alternatively, either a couple of children desperately begging for help or, on the opposite side of the building, a freezer containing hundreds of embryos in phials. A choice is necessary: to whom the priority? If you are convinced that embryos are human beings, the answer is inevitable: you will save the frozen embryos and accept to let the two children burn alive, as saving hundreds of “persons” is better than saving just two. Would you really be prepared to do that? If taken seriously and brought to its inevitable consequences – inevitable not extreme – the postulate on which the “pro-life” campaign is based, i.e. the assumption that the embryo is already a human person, leads to conclusions that are so aberrant that only the most fanatic supporter of those theories would accept to defend them.