Well it’s about that time again: Time to get pumped up for the Air Force-Navy football showdown this weekend. Last year’s game saw Air Force beating Navy 14-6. It was preceded by a classic spirit video. It’s an elaborate production for a group of cadets. How and why did they have the time to choreograph a four-minute dance video? Who knows. But in the spirit of the video and the weekend’s battle royal, Go Air Force, Beat Navy.