Could this possibly be true? I’ve done a quick search on the source and he doesn’t sound like a kook in any obvious way. But this really jumped out at me:

’The US has more frozen embryos than living people’

The claim came up in a discussion of fertility treatments:

In a discussion with the theme Assisted Procreation – Morality and Law, Rev. Prof. Emmanuel Agius, the dean of the Faculty of Theology and lecturer of philosophical ethics and moral theology at the University of Malta, and a member of the European Group of Ethics, declared that it should be “an honour” to be accused of not going along with all modern reproductive technologies.
… One of the Church’s four major principles was a couple’s right to full information about alternatives, rates of success, financial and other kinds of stress. The Church believed that certain methods of assisted procreation were taking the place of intercourse, reducing the dignity of the married couple.
The second major principle was respect for the dignity and integrity of human life from the very start. At no stage should an embryo be seen as a piece of material for scientific research on the pretext that it was “surplus to needs”. Embryos should not be frozen, but the fact that there were now thousands of them was causing a problem in itself. In the US it was said that there were more frozen embryos than living people.

Other sources say the number of frozen embryos in the U.S. is more like 100,000 to 400,000. And an NPR commentator says, “We don’t know the exact number of frozen embryos in the U.S. right now.”