US F35 fighter jet parts missing in Hong Kong seized by China

At a time when Chinese President Xi Jinping is in the US, Washington is grappling with a mystery involving its most advanced fighter jet. Sensitive parts of an F-35 stealth fighter jet, bound for the US from Australia, mysteriously landed in Hong Kong in May. Now, according to a report in Bloomberg, the parts have been seized by China - a major US military rival.Both Australia and the Pentagon have launched an investigation into how the F-35 jet parts wound up in Hong Kong - a special administrative region of China. The components included a cockpit canopy and weapons bay door. Both were coated with a radar-absorbing material that enhances the jet's stealth capabilities - a capability that took the US decades to perfect.WHY IS IT A CONCERN FOR THE US?China said it was not aware of any such incident.