Members of Congress and environmentalists are calling on the National Marine Fisheries Service to hold hearings on a controversial sonar system the Navy wants to deploy throughout much of the world's oceans and the Navy's application for a permit to incidentally "take" a small number of marine mammals through the sonar's use. They also are pushing for an extended comment period to allow the public 90 days to comment on a recently proposed rule by NMFS that would allow the...