“Our experiments are very clear. You inhibit this gene and you get a clone that has no way of ever implanting. But this clone can make embryonic stem cells.”
“We do experiments with animals and we know there is a major problem, which is not solved, so one should not do this with humans because humans are not guinea pigs.”
“The success of this procedure in no way precludes the need to pursue all forms of human embryonic stem cell research, ... Human embryonic stem cells are extraordinarily complicated. If we are ever to realize their therapeutic potential, we must use all known tools and techniques in order to explore the mechanisms that give these cells such startling characteristics.”
