Employment at Air Force Plant 42 and its adjacent defense contractor facilities appears to have decreased slightly in the first six months of 2008, but two of the major contractors are hiring. For the first time in several years, the figures released by Plant 42 officials included the employment numbers for the Federal Aviation Administration Air Traffic Control Center. The center employs approximately 500 people, including controllers, technicians and the like, said FAA spokesman Ian Gregor. Including the FAA center, employment over the first six months of the year was 6,858 people, compared to 6,412 people during the last six...