Overview: An atomic attack... cyber warfare... a deadly airborne virus... the list of doomsday scenarios facing the United States has shaken the American psyche. But what is the government doing to protect the nation from ultimate disaster? This episode takes an in-depth look at the impending threats facing our world today. With the Doomsday Clock set to 5 minutes before midnight, is the end of the world looming just around the corner? And could our lack of preparation force us to make the ultimate choice: who will live and who will die? Survivalist Tim Ralston talks about the ...