On Tuesday, an F-35 stealth fighter jet landed aboard the newly-built carrier USS John F. Kennedy for the first time, the U.S. Navy says. The landing is a milestone for the carrier's progress for commissioning, now expected sometime in the second quarter of next year. The carrier also completed its first F-35 launch, using its electromagnetically-actuated catapult system to propel the plane back into the air. Kennedy is the second in the class and the first to deliver with all...