President Trump wants NASA to get Americans back to the moon in five years. To heighten the urgency, NASA administrator Jim Bridenstine -- a Trump political appointee -- fires William Gerstenmaier, a well-respected 42-year NASA veteran in charge of human space exploration. Will this sudden move light a fire under the bureaucracy, or did we just lose four decades of institutional knowledge jeopardizing our safe return to the lunar surface? Should NASA get our of the business of human space transportation?