THE thunder of jet engines shook the Madiun skies on Wednesday last week. The deafening noise came from the engines of Indonesian Air Force fighter jets that were flying from the Iswahyudi Air Base. From the observation tower, dozens of robust young men on the ground could be seen absorbed watching the maneuvers of the Skyhawk Mk-53s, F-5s and F-16s. They were the pilots who failed to get a turn to fly today and instead were ordered to observe th