NASA aviation study shows little

After three years of stalling, NASA released data compiled from nearly 30,000 pilot surveys over 6 years at a cost of about $6 million.

The information from the National Aviation Operational Monitoring Service (NAOMS) was made public on the NASA Web site Monday in the form of extensive read-only files with the names of pilots and airlines removed for legal reasons. However it remains unclear what the information reveals or why it was collected.