The Air Force would shift satellites onto the SpaceX Falcon 9 and United Launch Alliance Delta IV rockets if Russia decides to halt delivery of the remaining order of RD-180 rocket engines for the Atlas V launch vehicle, even though that backup plan for maintaining assured access to space would be very expensive. The service wants Congress to fix a "technical glitch" in a law passed after Russia’s invasion of Crimea last February that prevents the Pentagon from paying for...
