Alexandra Petri: We need a space force. There is literally nothing more pressing.

Sorry, Earth. Space beckons.There comes a day in the life of every sufficiently wealthy man or nation when you simply run out of things to do on the planet. And I regret to say that that day has come for the United States.We have run out of things to throw money at on earth.Look there are only so many decorative napkin holders with your initials on them that you can possibly get before you are decorative-napkin-holdered out. You can only commission so many large oil paintings of yourself in a re