China's J-20 stealth fighter pictured at Chengu airbase, Sichaun province, this month. Photograph: Kyodo/ReutersChinese Stealth Fighter Jet May Use US Technology -- The Guardian
China may have bought parts of US F-117 Nighthawk shot down over Serbia in 1999, say experts
A Chinese stealth fighter jet that could pose a significant threat to American air superiority may borrow from US technology, it has been claimed.
Balkan military officials and other experts said China may have gleaned knowledge from a US F-117 Nighthawk that was shot down over Serbia in 1999.
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Update #1: China's new stealth fighter may use US technology -- AP
Update #2: China's stealth fighter 'based on US technology' -- The Telegraph
My Comment: Industrial espionage, stealing technology .... the Chinese are masters at doing this. The possibility that they may have stealth technology from the U.S. is not a far fetched idea.