The Pentagon says it plans to buy 10 Joint High Speed Vessels that may have marines and special-operations SEALS going to combat onboard aluminum, twin-hulled catamaran offshoots of successful civilian ferries. The Pentagon says the plan includes use of the JHSV by the Navy and Army in a wider variety of military missions being considered. Austal, the program's prime contractor, began work on the first high-speed vessel last month, and, was recently awarded a $204.2 million contract toward construction of two more. In all, the project's construction of 10 JHSVs is estimated at $1.6 billion, Pentagon officials said. The 338-foot-long...