"If it's been put on autopilot and there's no one on the bridge, which could happen, then it'd just go straight on.
"Autopilot just steers a course, they don't deviate, there's no bend in the sea. They just go straight for miles, hundreds of miles, and it would've gone in a straight
direction
"It's difficult to understand what happened, or why it happened."
He added there would have been alarms on the bridge, which raised even more questions about how the collision unfolded.
Which makes dereliction of duty all the more likely.