Embryo ethics: Finding a home for Canada’s frozen 'orphans'

Embryo ethics: Finding a home for Canada’s frozen 'orphans': Tens of thousands of human embryos hang in cold storage in Canada’s fertility clinics, an unknown number of which are “orphans.” Increasingly, however, clinics are preparing to match these embryos — which could survive for decades in suspended animation — with infertile couples who long for a child of their own.