How Large Ships Use Navigation Systems

The International Maritime Organization has decreed that by 2015, all large deep sea ships will be required to carry the latest in electronic navigation equipment. But does state-of-the-art navigation technology prevent shipwrecks like last week's off the Italian coast? University of Southern Mississippi hydrographer Max van Norden talks about the technology.

Source: http://www.npr.org/2012/01/20/145525012/how-large-ships-use-navigation-systems?ft=1&f=1007

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