Sandra Day O'Connor comments on threats to independence of judiciary [video 23min]

In the 1st of a series of interviews from America ahead of the US midterm elections, Stephen Sackur gets a rare interview with the former US Supreme Court Justice, Sandra Day O'Connor. She was the first woman justice to be appointed to the Supreme Court and for 25 years was one of its most influential voices. As the ultimate check on executive and legislative power, does she believe the independence of the judiciary is now under threat?