Local volunteers carefully preserve peices of Air Force history near the shores of the Great Salt Lake at Hill AFB, Utah.
Images of a new, two-seat version of China's J-20 stealth fighter, circulated on the internet, raise questions about the jet's purpose. It could be meant as a trainer, a ground-attack variant, or as a platform for managing unmanned aircraft flying in coordination with other J-20s and Chinese combat airplanes. The…