While the Navy's next-generation destroyer is on track to be far more expensive than an Arleigh Burke-class vessel, the service argues its capability and capacity will warrant the increase in cost and that the Constellation-class frigate program will fill in the gaps as the service transitions to a larger surface combatant. With a hefty price tag, the first DDG(X) will cost about twice as much as a DDG-51 Flight III destroyer, according to an August Congressional Research Service report ...