Dinner with Portillo - Can Scientists Be Morally Neutral?

Over dinner, Michael Portillo and seven guests discuss whether scientists can be morally neutral in their pursuit of scientific knowledge. Should scientists take an ethical stand on how science is used? Should there be limits on what scientists are allowed to discover? What ethical dilemmas will be thrown up by the science of the future? Guests include Baroness Susan Greenfield, Mark Henderson and Bryan Appleyard.