Air Force officials opted not to modify the evaluation criteria for its multibillion-dollar KC-X aerial tanker replacement effort in the final version of the program's request for proposals released today, casting further doubt as to whether one of the two industry teams vying for the contract will pull out. Earlier this month, members of a Northrop Grumman-EADS development team sought to pressure senior service officials to change the criteria, claiming their team would be put at a significant disadvantage in...