To be on Incapacity Benefit you have to have been deemed unfit for work by your GP. Then, after several months on Income Support, you move on to Incapacity Benefit.
In case anyone needs reminding, your GP is a qualified doctor with your full medical history in front of them. Hard to think of anyone better placed to make that sort of decision. But there is one man who, without any medical training or performing any examinations, knows better than all the GPs combined.
Tory leader David Cameron said too many people were able to work, but did not.