Japan and the United States released a joint report Tuesday on construction details of the contentious relocation base for U.S. Marine Corps Air Station Futenma in Okinawa but without coming to an agreement on runway options.
The study report, compiled by experts from both countries, also doesn't resolve a U.S. proposal for major flight path changes to and from the planned relocation airstrip along the Henoko coast.
The changes could entail greater risks and noise pollution, which would trigger further opposition in Okinawa.