So I noticed spirit just added 9 cities out of Atlanta today. Previously they have also expanded msp and Dtw. I know that they are targeting passengers who wouldn't fly delta anyways but at what point does Delta start defending their turf a little more against these guys or are they already and i just don't know? They are never going to touch atl but what about deltas other bases, especially o/d traffic out of msp and Dtw to vacation destinations?