Navy, environmentalists settle sonar lawsuit

The Navy has settled a lawsuit filed by environmentalists challenging its use of sonar in hundreds of submarine-hunting exercises around the world. The Navy said Saturday the deal reached with the Natural Resources Defense Council and other groups requires it to continue to research how sonar affects whales and other marine mammals. It doesn't require sailors to adopt additional measures to protect the animals when they use sonar. The agreement comes one month after the U.S. Supreme Court ruled in favor of the Navy in another sonar lawsuit the NRDC filed....