texas attorney general
  
  
    
      
  
  
  
      
  
  
  
    
  
    
        
    
          
              
            
            
            
        December 7, 2012 -
        
  
        Two weeks before the Deepwater Horizon rig exploded, killing 11 workers and spewing millions of gallons of oil into the Gulf of Mexico, BP was spewing a different kind of pollution -- leading to a $500 billion lawsuit that has received far less attention.