Kian Tajbakhsh is a professor of international relations at New York University and was a political prisoner in Iran. Tajbakhsh says the Iranian regime would rather see infrastructure flattened than step aside, and so U.S. President Donald Trump's threats don't affect it. Tajbakhsh says the threats may, however, have an effect on civilians. »»» 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

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