WATCH: Train operator appears to fall asleep at controls

Video appears to show a San Francisco commuter train operator falling asleep at the controls while the train traveled up to 50 mph, throwing passengers back and forth.

​Video appears to show a San Francisco commuter train operator falling asleep at the controls while the train traveled up to 50 mph, throwing passengers back and forth.   Video appears to show a San Francisco commuter train operator falling asleep at the controls while the train traveled up to 50 mph, throwing passengers back and forth.