A proposed agreement between Delta Air Lines and the Metropolitan Airports Commission would keep thousands of jobs in the Twin Cities...Under the deal:Northwest airlines would get out of its agreement to keep its headquarters in Minnesota...And Delta would promise to keep jobs and flights at the Minneapolis St. Paul International Airport at close to current levels.The agreement calls for Delta to keep its "Delta North" headquarters in the Twin Cities, as well as 10 thousand jobs and 400 flights a day.