WASHINGTON — While the Department of the Air Force has not revealed the impetus behind its unusual Jan. 16 announcement that Space Development Agency chief Derek Tournear has been placed on administrative leave, Breaking Defense has learned that the move is related to an ongoing bid protest by Viasat over an recent SDA contract award. According to several sources involved, Tournear allegedly stepped afoul of DoD contracting procedures in the runup to SDA’s Aug. 16 award of two prototype agreements worth approximately $424 million in total to York Space Systems and Tyvak Nano-Satellite Systems, a subsidiary of Terran Orbital, out...