First lady Michelle Obama's family trip to South Africa and Botswana in June cost taxpayers well over $424,000, according to new accounting based on Air Force manifests obtained by Judicial Watch, a taxpayer watchdog group. The use of Air Force aircraft alone for the June 21-27 trip cost $424,142, said the group, and that doesn't include the food, lodging, and ground transportation for the 21 family and staff members. Judicial Watch said it based the jet costs on the Pentagon's hourly rates for the C-32A aircraft used for the trip. The documents don't give exact cost calculations, which is typical...