Tour of Grand Central’s top-secret tunnel that only presidents use

It is no secret now that Franklin D. Roosevelt had the unique challenge of hiding his crippling disease of what was believed to be polio throughout his terms as president. He went through great lengths to hide this disease from the press and the public. One of his many tricks of disguise can still be seen on a secret track, hidden below Grand Central Terminal. -------------------------------------------------- Follow BI Video on Twitter: Follow BI Video On Facebook: Read more: -------------------------------------------------- Business Insider is the fastest growing business news site in the US. Our mission: to tell you all you need to know about the big world around you. The BI Video team focuses on technology, strategy and science with an emphasis on unique storytelling and data that appeals to the next generation of leaders – the digital generation.