Redesigning Humanity

Scientists are hard at work developing biotechnologies that will allow us to alter our physical and mental identities. This hour, we’ll talk about the ethics of changing who we are – and about how these technologies could redefine what it is to be human – with Vanderbilt history professor Michael Bess, author of “Our Grandchildren Redesigned: Life in the Bioengineered Society of the Near Future” (Beacon Press).