The UK Government has been urged to act after it emerged thousands of people in Wales with serious conditions like cancer are facing unprecented delays in getting the vital assessment they need to qualify for financial help. Some patients died before they were even seen.
One Welsh MP has described it as a scandal of national proportions. Today the head of the company responsible promised improvements to the recently introduced Personal Independence Payments, which are replacing the Disability Living Allowance.
Ian Lang has been speaking to one woman from North Wales with cancer, who says she's been left devastated by the delays.