International research shows that cannabis is 15 percent more potent than it was 50 years ago. The Panel talks to Professor Joe Boden, from Otago University who is the director of the University's Christchurch Health and Development Study which has looked at cannabis use in NZ. Professor of International law, Al Gillespie talks to The Panel about the revelation Donald Trump wanted to start bombing Iran after he lost the US presidential election and of his intention to bring American troops home.