“NASA and Pentagon officials moved swiftly this past week to urge competitors to Elon Musk’s SpaceX to more quickly develop alternative rockets and spacecraft after President Donald Trump threatened to cancel Space X’s contracts and Musk’s defiant response,” the Washington Post reports.“Government officials were especially stunned after Musk responded to Trump with a salvo of his own: SpaceX would stop flying its Dragon spacecraft, a move that would leave the space agency with no way to transport its astronauts to the International Space Station.”