Defense giants Boeing and Lockheed Martin today formally announced they have formed a partnership to compete for the Air Force's next-generation bomber program, one they say can produce an aircraft in 10 years. While the Air Force has not said when it will begin the bomber program, senior service officials have said they want the platform to reach initial operational capability by 2018. Although no formal request for proposals has been issued, Boeing and Lockheed officials say they expect the...