Remember the LIRR split level trains?  They were wildly unpopular, with   
   passengers jammed in in a split level fashion.   
      
   CBS News:   
   Airbus, one of the top aircraft manufacturers, has designed a new way of   
   seating passengers that will undoubtedly cheer profit-minded airlines while   
   sending shudders of horror through even the most even-tempered customers. In   
   Airbus' vision, passengers    
   will be stacked on top of each other, with a second level of seats above the   
   heads of those seated on the floor.    
      
   http://www.cbsnews.com/news/think-flying-is-already-cramped-wait   
   till-you-see-this/   
      
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