pallab ghosh, bbc news. hank greely is stanford university professor of law and director of the center for law and the biosciences. he joins us from california. i ll be in the early stages of this research or will be set applied in practice soon? we are into the applied in practice soon? - are into the early stages. this is a very clever piece of work and i was very impressed with that but you have to remember almost every biological research, never believe it until someone else replicates it and they run a species specific variation. just because it can be done in mice does not mean it can be done in cattle or pigs. i do not see any good reasons it cannot be but biology often surprises us. chickens have a different kind