From Scientific American:
Would a plan to build a 2.5-mile-long airfield in Okinawa, Japan, doom a rare manateelike species to extinction? That's the assertion of more than 400 environmental organizations (pdf), which recently sent a letter to President Obama urging him to cancel the plans to expand Camp Schwab, a U.S. Marine Corps base on Okinawa island.
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My Comment: If this is the only thing that opponents to the U.S. base in Okinawa can bring up .... they are then really searching for any excuse to kill this military relocation.