Current account deficits - when to act?

Thanks to tutor2u for this great little clip
http://www.tutor2u.net/economics/blog/current-account-deficits-when-to-act?utm_medium=email&utm_campaign=Economics%20daily%20digest%20Wed%2018th%20May%202016&utm_content=Economics%20daily%20digest%20Wed%2018th%20May%202016+CID_5cd9a242e9144dd89865319382a09c8f&utm_source=CampMonitor&utm_term=Current%20account%20deficits%20-%20when%20to%20act%20What%20are%20Current%20Account%20Deficits%20and%20what%20should%20countries%20do%20if%20anything%20when%20they%20occur