The Yin and the Yang:

Air Force Undersecretary Ronald Sega told Washington-based defense reporters that even though the Air Force plans to ensure it doesn’t push immature technology into production, it does want to pursue leading-edge technology. Sega says that the service’s research community must push “the frontiers harder,” and that inevitably means some technologies won’t succeed. He emphasized that no one should be “surprised” if some things don’t work out.