Famous models may not single-handedly save Darfur, eradicate unethical diamond mining or stop global warming - but dipping in the pool they can do beautifully.
The most benevolent model of the moment, however, is Liya Kebede. She's got her own brand-name charity and a part in this great movie called The Good Shepherd where she dies a terrible death of the hands of the CIA. We loved it.
