the scientist who led the discovery in 2012 is like yesterday, doctor jennifer doudna, what is she makeeat taking pace of innovation since her discovery and does she fear where it could lead? doctorjennifer doudna, welcome to hardtalk. thanks very much. what is crispr—cas9? hardtalk. thanks very much. what is crispr-cas9? well, crispr-cas9 is an incredible tool. it is a molecular scissors that can cut dna at targeted sites in a genome of a cell, changing the genetic code in a precise fashion. i think you described it as like being able to edit a book, to change one word or even a letter. that's right, it is essentially like being able to rewrite the code of life. we can change the dna sequence at will stop. now, i think it change the dna sequence at will stop. now, ithink it was change the dna sequence at will stop. now, i think it was as well, although there have been obviously huge advances in genetics over decades now, it was a bit of a eureka moment for you when you discovered this tool, it wasn't at? this is true, it was a project that started as a collaboration and we we re starte