China has increased its tempo of deep sea surveys in the South China Sea, worrying claimant states and other nations. Collin Koh, a Research Fellow with the Singapore-based S. Rajaratnam School of International Studies, said meteorological, geophysical, acoustic, hydrographic and other scientific information collected from such surveys are “dual-use.” He said: “The same data that contributes to the furtherance of mankind’s knowledge of the marine environment contributes to national security purposes, especially military planning.