An influential Navy group is preparing for the service's top officer a list of missions, capabilities and requirements for the service to offer as its main contributions to the Defense Department's global war on terrorism, according to service officials and documents. Rear Adm. (select) Michael Mahon, head of the Navy's "Deep Blue" staff, is leading the service's Global War on Terrorism (GWOT) Working Group, established this spring to provide a prioritized list of sea service requirements to Adm. Vern Clark,...