Defense Secretary Chuck Hagel's recent announcement that the Pentagon might slash the number of carrier strike groups from the 11 required by law to eight or nine is raising questions about how the Navy and industry would handle such a change. Huntington Ingalls Industries President and Chief Executive Officer Mike Petters today advocated maintaining 11 carriers, but added, "If you hypothetically went and tried to say, 'We’re going to change the number to something else,' the real question is how...