If imitation is the sincerest form of flattery, then China’s embrace of stealth aircraft technology is a compliment to American ingenuity. Both awed by — and apprehensive about — U.S. stealth capabilities, China has invested heavily in developing stealth aircraft, as well as anti-stealth air defenses. But China has learned the wrong lessons from America’s stealth program, according to U.S. Air Force analysis released this month. China is convinced that advanced technology is the foundation of U.