we talked this evening with siddartha mukherjee. he's written a new book the gene, an intimate history. >> the book begins with my own history, my own family's history of mental illness. schizophrenia and bipolar disorder affects more than one generation in my family. one of my finding questions is what is it, what is that thing that crosses over generations. why isn't everyone affected. why are only some members affected. and then the third strand, which is probably very very topical is that during this period of time we had begun to invent technology to read and write the human genome. this was surprising the felicity with which, the fidelity which we can change this human generation was surprising to me. >> rose: we conclude with cyber warfare and talk to alex gibney the filmmaker and david sanger the "new york times" national security correspondent about a new film from alex gibney called zero days. >> so many people refuse to talk to me about it and refuse to admit their role in the operation. and this is after the race was blo

we talked this evening with siddartha mukherjee.s written a new book the gene, an intimate history. >> the book begins with my own history, my own family's history of mental illness. schizophrenia and bipolar disorder affects more than one generation in my family. one of my finding questions is what is it, what is that thing that crosses over generations. why isn't everyone affected. why are only some members affected. and then the third strand, which is probably very very topical is that during this period of time we had begun to invent technology to read and write the human genome.