Why F1 stewards' hands were tied over Vettel's Canada penalty

As the dust settles on Sebastian Vettel's controversial penalty that cost him victory in the Canadian Grand Prix, Edd Straw, Scott Mitchell and Jonathan Noble debate the incident between Vettel and Lewis Hamilton, explaining why there was little else the stewards could do with F1's rulebook in its current form. They also investigate how taking some more time to consider Vettel's response to going off track, plus the additional details that have emerged about the FIA's decision, make it hard to argue against the verdict the officials came to.