It's certainly appropriate for NTSB to want to improve GA safety. But to have "lamented the fact that GA continues to have the highest accident rate within civil aviation" is ridiculous. I hope it's a misquote. Of course, GA has the highest accident rate within civil aviation! It is at the bottom of the stack in terms of training, crew size and equipment. If GA did not have the highest accident rate, then another, better trained and equipped civil aviation service would have that unfortunate distinction and would be looking a lot worse than GA does now.
