Russian officials dubbed the Krasnodar the quietest submarine in the world. The U.S. Navy is tasked to hunt it down and others like it. But how do you hunt a submarine that is especially designed to stay hidden? Check out this video to see the incredible technology that helps the Navy hunt down stealthy submarines.
Stop robocalls for good with Kim’s new eBook
Robocalls interrupt us constantly and scam Americans out of millions of dollars every year. Learn Kim's best tricks for stopping annoying robocalls in this handy guide.