"That deadline is hard and fast, " Mr Carney said of next Tuesday's expiry date on the debt ceiling.

BBC: US debt: Boehner tells Republicans to 'fall in line'

Research from LV Car Insurance shows that nearly a fifth of drivers they interviewed had no idea when their licence would run out, even though the expiry date is clearly shown on the front of the licence.

BBC: Driving licence fines threaten two million drivers