I'm afraid that the underwater city/atlantis theory has been debunked. Turns out those photos were of tracks of boats used by google to map the ocean using sonar.
Tyler, that report about Google Earth not finding atlantis goes something like this
http://www.techtree.com/India/News/Lost_City_of_Atlantis_Not_Found_on_Google_Earth/551-99235-643.html Pathetic reports by some people smear the REAL DISCOVERIES being made.
That is not what the work of Graham Hancock is about. Graham does not talk about "atlantis". Graham in the previous video introduction showed him following the Indians in their dicovery of an ancient city in the Gulf of Cambay dated 9,000 BC, complete with artifacts. Then on to Japan's underwater megalithic ruins where the Japanese are convinced that these are ancient ruins dating to some 8,500 bc.
Graham Hancock's work is about searching for the worldwide lost civilization as far back as 10,500 BC, those who made the Sphinx, the Ruins at Ankor Wat and many others have the same astronomical - architectural technology.
More of Graham Hancock's work globetrotting around the world comparing the different lost civilizations he points to these old civilizations being in touch with one another during PRE-HISTORY.
http://www.youtube.com/v/3KUVix96NsY&rel=116 part special: Quest for the Lost Civilization
Amazing fellow, he taps the experts at each site.
Part 16/16 shows his current theory conclusions.
His official website can be found at
http://www.grahamhancock.com/