Photo: Reuters As fighting intensifies in the Gulf, experts warn that the region’s most precious resource is not oil or gas, but water. The arid states of the Middle East rely heavily on desalination plants to turn seawater into drinking water — facilities that now face growing risks of attack. Recent incidents have heightened fears: Bahraini officials reported damage to a desalination plant from an Iranian drone strike, while Iran accused the U.S. of hitting one of its own f