Over three decades, the U.S. has spent billions of dollars and lost 30 lives creating a unique aircraft, the Osprey, which lifts off like a helicopter and flies like a plane.
After all these problems, the Marines are now using them widely in Afghanistan, and the Osprey is getting excellent reviews.
But the aircraft now faces another question: Because it's so expensive, should the Osprey program be slashed as the Pentagon looks for cuts?