Stuart Chait

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The most secure place on earth isn't he bottom of some bunker or behind some intricate corporate alarm system. It is Cadillac 1, aka the Beast, the part car, part tank, part hospital that protects the president of the United States. The special will build the Beast from the ground up to reveal its inner workings.

From 1944 to 1945, Japan sent over 9,000 bomb-equipped balloons over the Pacific to attack America. Historian Martin Morgan goes on a first-of-its-kind hunt for the bombs still lying undetected under the North American surface.