A 'Seismic' Change for the America's Cup?

The 38th America's Cup is back under way as the Royal New Zealand Yacht Squadron and the Royal Yacht Squadron in the UK sign the AC38 protocol for the next event. But this is more than just an agreement on how the next America's Cup would be played. This is a template for the future in which the competition for the oldest international sporting trophy will have something it has never had in over 170 years...certainty. At least that's how the British and Kiwi camps were billing it leading Sir Ben Ainslie to describe it as 'seismic' for the Cup. Matt Sheahan looks into what has been agreed, what's in store for AC38 and why this agreement is considered to be so important.