<span>The U.S mail cars were connected to the Pullman cars so they could allow federal intervention to end the strike by letting railroad executives to claim the strike interfered with the mail.</span>
        
             
        
        
        
Alaska had/has a RIDICULOUS amount of natural resources that were totally untapped, and Hawaii was wanted for military purposes
        
             
        
        
        
The last choice (the press).. hope this helps..