Speaking at a think-tank Q&A session in Sydney on his Indo-Pacific tour, Prime Minister Mark Carney reiterated that he supports the U.S.-Israeli attack on Iran, calling the regime 'one of the gravest threats to international peace and security.' But he also said the initial attacks were likely a violation of international law. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on