Are there really new sins?

I didn't realize there was such a thing as new sins, but apparently there are:

Asked what he believed were today's "new sins," he told the Vatican newspaper L'Osservatore Romano that the greatest danger zone for the modern soul was the largely uncharted world of bioethics.

I think the Archbishop was asked a bad question. I don't think there are any new sins under the sun. Maybe there are just new ways for us to manifest sin in our given context. I do feel him on his caution about bioethics.