The population of bluefin tuna near Japan is threatened due to overfishing. Marine biologist Shana Miller joins "CBS This Morning Saturday" to discuss how the world is working to save the fish.
VIDEO: Marine Biologist on Tuna Preservation
The population of bluefin tuna near Japan is threatened due to overfishing. Marine biologist Shana Miller joins "CBS This Morning Saturday" to discuss how the world is working to save the fish.
Nov 10, 2014
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