Are there really 400,000 embryos available for research?

It is a matter of, if I may be excused, God's Own Truth among advocates of embryo-destructive research that there are 400,000 frozen embryos slated for destruction and waiting to be turned into embryonic stem cell lines that will certainly make the lame to walk and the blind to see.

But are there really 400,000 frozen embryos available? A Rand Institute study says not. It estimates that there are only about 11,000, from which only about 275 stem cell lines could be created.

The overwhelming majority are being held for future use. That's not to say that they will be used, but they aren't available for research either.