UK high school exam results overturned after grades concern

To the UK, where high-school exam results will be overturned after days of concern from students. Students in Wales and in Northern Ireland have been given the grades predicted by their teachers - not by the system which saw an algorithim making the final grade determination. That will now be extended to tens of thousands of students in England who were eligible for the A-level exams. Indira Stewart gets the latest from UK correspondent Henry Riley.