Leadership: As our space program, once an example of American exceptionalism, now sits mainly in museums, Beijing's ambitious program takes another leap forward toward an eventual return of man to the moon. As the world unravels, efforts to leave it don't seem very newsworthy, and efforts by our strategic rivals to do what we did decades before seem redundant and almost irrelevant to more immediate concerns. Yet China's space program does matter, as it's part of that country's dream of world leadership and, yes, domination. It represents a commitment to world leadership that we have lost under this administration. Beijing...