Andrew Chang explains why a U.S. military takeover of Kharg Island — one of Iran's most critical energy assets — could lead to heavy losses, with uncertain gains. Images provided by The Canadian Press, Reuters, Adobe Stock and Getty Images »»» 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 TikTok: https://www.tiktok.com/@cbcnews Subscribe to CBC News on Snapchat: https://bit.ly/