Cloning Humans - A Good Idea?

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Could human cloning bring back a loved one who's died? It's emerged that a couple in the USA are trying to do just that, helped by an organisation called Clonaid, the scientific arm of the religious organisation Raelism. The programme speaks to the group's Scientific Director about their involvement, and looks at the ethics of cloning. Also on the programme: Empty Nest Syndrome - how mums round the world cope when their daughters leave home. Plus, does the Karma Sutra pander too much to men?