Back in the early ’70s, when scientists first learned to manipulate the living gene, they put a moratorium on some kinds of molecular experiments to give themselves time to think about what they were doing and set some guidelines for the research. Now genetic research is in full swing, as scientists work on projects ranging from developing more fertile chickens to curing cancer. But even as the discoveries mount, the dissenting voices are also rising. In this program with Bill Moyers, Dr. Maxine Singer, the geneticist, discusses her concerns with the ethics of science, the dilemmas of choice, and the consequences that so often accompany scientific progress. She also talks about the image of scientists in our society and the ethics of genetic engineering. (30 minutes)