Destroyer USS Zumwalt US Navys future: Electric guns, lasers, water as fuel

Imagine ships that fire missiles at seven times the speed of sound without using explosives, or that use lasers to destroy threats at the cost of about a dollar a .\r
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The new Zumwalt class destroyers are multi-role ships for the US Navy. These stealthy guided missile destroyers can perform anti-aircraft and naval fire support, .\r
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The Laser Weapon System (LWS) temporarily installed aboard the guided-missile destroyer USS Dewey (DG 105) in San Diego, Calif.US Navy, John F.\r
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The United States Navy has spent a reported three billion dollars to develop and build the largest stealth destroyer vessel in its fleet, which they named the USS .