Today on CNN10: We'll get an update on the ongoing partial federal government shutdown, and see how its impacting employees across the Department of Homeland Security. Then, we'll head to Cuba for an update on the ongoing energy crisis there, and learn why the United States allowed a Russian oil tanker to break the ongoing blockade. Plus, we'll dive into the science behind a unique approach to extinguishing fires ... using sound waves! And Coy couldn't let the day go by without a little Tomfoolery... All this and more on today's CNN10!

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