ABC News’ Matt Rivers breaks down the drought at the Panama Canal, which is causing global trade delays and fueling threats to the world’s supply chain. SUBSCRIBE to ABC News on YouTube: bit.ly/2vZb6yP Latest updates: abcnews.go.com Watch FULL EPISODES on Hulu: abcn.ws/3bzvQQn #news #panama #environment #panamacanal #abcnews #abcnlupdate