Images from NASA's Lunar Reconaissance Orbiter (LRO) have revealed all but one of the American flags planted on the moon by Apollo astronauts are still standing. Buzz Aldrin stated some time ago that they inadvertently planted Apollo 11's flag too close, and it got knocked over by the blast of their takeoff from the moon. I guess this is all good and expected. After all, if any of the rest had fallen over that would mean they were pushed.