The greatest gift

Donating your body, or the body of a child, to medical research is a great gift to mankind. Most of you can be recycled: your eyes, your skin, your bone or even a little piece of your heart. Now they want to grind your bones for surgical putty. Then, your dead bits will be helping a biotech company's bottomline too. Can altruism and commerce live side-by-side when it comes to giving "the greatest gift of all"? Reporter: Ian Walker.