NASA chief says space shuttle was a mistake

The space shuttle and International Space Station were mistakes. According to NASA chief Michael Griffin. He relates that the NASA lost its way when the agency ended the Apollo moon missions.

"It is now commonly accepted that was not the right path," Griffin said. "We are now trying to change the path while doing as little damage as we can."

The shuttle has cost the lives of 14 astronauts cost about $150 billion. The total cost of the space station by the time it's finished may exceed $100 billion.