As many as three million Americans now regard themselves as 'preppers' - people preparing for the end of the world as we know it
The North Florida Survival Group claims it can teach you and your family everything you need to know to survival
Members include children as young as nine, who are taught to fire guns and go on training exercises
The group's leader says it is open to everyone except 'Socialists, Marxists, Nazis or Progressives’