The Air Force would like F-35 sustainment costs to be comparable with those of legacy fighter aircraft, and Chief of Staff Gen. David Goldfein told reporters today the service is working closely with prime contractor Lockheed Martin and the Office of the Secretary of Defense to achieve the service's cost targets. Goldfein stopped short of revealing those targets during a Defense Writers Group breakfast this morning, but said he doesn't want to pay more to sustain an F-35 than what...