Re: It is a waste of time
You probably haven't seen the sonar imagery that came from the search (the actual search sonar not the pre-mapping work that was done to reconnoiter the area). Have a look at the Mh370 ATSB page, they have some samples on there. If they had searched the right area, the plane (or its debris field) would be quite clearly visible on sonar. They weren't using fish finders for the search, they wouldn't have even bothered if "the odds of recognising it via sonar at such depths are quite small".
Biting the hand that feeds IT
