The Japanese government was aware that a portion of the seabed at the planned relocation site for a U.S. military base in Okinawa, southern Japan, was weak in 2015, three years before controversial landfill work got under way there, official documents showed Saturday.A geological survey conducted by a contractor found the possibility of the ground sinking over the long term due to a weak seabed area. However, the government did not officially acknowledge the existence of the soft earth, which required reinforcement work, until 2019.The transfer of the U.S. Marine Corps Air Station Futenma, …READ FULL ARTICLE