China Struggles To Build An F-22

http://www.strategypage.com/htmw/htairfo/articles/20091117.aspx

Chinese Air Force has announced that it has a F-22 type aircraft ready to make its first flight within a year. The Chinese believe this aircraft will enter service within ten years. U.S. intelligence believes the Chinese are nowhere near this kind of capability. But given the quantity and quality of data Chinese hackers have been stealing in the past five years, it's possible that they have much of the American technology that makes the F-22 and F-35 possible.