https://www.youtube.com/watch?v=NX24QMTyOls
These Titanic submarine 'flaws' may be behind disaster https://www.youtube.com/watch?v=-u0UeY4epuQ
James Cameron on 'fundamental flaw' in design of Titan submersible https://www.youtube.com/watch?v=5XIyin68vEE
'There is no excuse for what happened here': Director James Cameron on Titanic sub tragedy https://www.youtube.com/watch?v=e9YB31ElEFQ