The UK parliament is considering landmark proposals to legalise assisted dying in England and Wales. They would, if approved, establish the right for some terminally ill people to choose a medically assisted death. Several European nations, Canada, and a number of US states have already gone down this road. Stephen Sackur speaks to actor and disability rights campaigner Liz Carr. Is the focus on a ‘good death’ detracting from the right to a good life?