One of the Air Force's leading intercontinental ballistic missile contractors expects to complete a research initiative, intended to advance development on a more common and effective missile propellant between the Navy and Air Force, by the end of July. The company, ATK, is conducting small-scale static testing this month but has not yet been given direction or funding to pursue a broader full-scale static test. ATK provided the Air Force with the motors for all three of the stages its...