A $4.4 billion US destroyer was touted as one of the most advanced ships in the world. Take a look the USS Zumwalt, which experts now say is a 'failed ship concept.'

3 years ago 16

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3. A $4.4 billion US destroyer was touted as one of the most advanced ships in the world. Take a look the USS Zumwalt, which experts now say is a 'failed ship concept.'