Just calculate our PS on $7 billion and then on $10 billion based upon the current formula- because that is where we are heading. DAL corporate debt is declining fast and because of improved financial condition can be refinanced at a very low interest rate. You don't want debt to get too low or you become a takeover target. So after debt is retired and with money saved from refinancing existing debt, the money you were using to pay down and service debt flows right to the bottom line. Furthermore, as older employees retire they are replaced with newer less expensive employees, so over time overall labor costs (on a per pilot basis) will also decline. Our brand image has improved to the point that people will pay more to fly Delta. That trend should continue into the future with an ever improving product and our fleet is renewed. PS is our ace card now and I believe ALPA is going to negotiate it away.