Investigators are poring over data captured by the Bluefin-21 sonar submarine. It is analyzing the ocean floor in hopes of catching the first glimpse of Flight 370. Anderson and CNN Analyst David Gallo take an up-close look at the type of images the Bluefin is collecting.
Once debris from Flight 370 is located, a different type of submersible will be called in. Gary Tuchman climbed inside a vessel that played a key role in finding pieces of the Space Shuttle Challenger.
Filed under: 360° Radar
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