ORLANDO, FL -- The Air Force is beginning to look at an expanded role for the T-X airframe, according to the head of Air Combat Command, including as an aggressor or as a light-attack aircraft. Leading up to its competition to build a new T-X training jet -- which a Boeing-Saab team ultimately won -- Air Force officials were explicit that the service was focused on its requirement for 351 new trainers. However, Gen. Mike Holmes told reporters during a...