In Digital Age, What's Left For Modern Explorers

  
There are still vast areas of the Earth no one's ever seen -- much of it in the






  

    

      
By NPR Contributor - NPR

      
Published: Jan 14, 2011

    

    

                      

    

                  
          
    

      
In Digital Age, What's Left For Modern Explorers
By: NPR Contributor
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In Digital Age, What's Left For Modern Explorers
    

      
From Talk of the Nation on 


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Aired during Talk of the Nation on Thu, 06 Jan 2011
        

              

            

 
        

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