In an anticipated move, environmentalists filed suit Oct. 19 against the Navy, charging its use of mid-frequency sonar during routine testing and training throughout the world's oceans is harming marine mammals and violating U.S. environmental laws. The Navy uses mid-frequency sonar aboard its vessels to detect close-range submarines and to locate mines. The suit, led by the Natural Resources Defense Council, alleges mid-frequency sonar was tied to mass marine mammal strandings over the past several years in numerous instances, including...
