Japan, US struggle to find crashed jet and its 'secrets'

One week after an F-35A stealth fighter jet crashed off the northeastern coast of Japan, US and Japanese military vessels are struggling to find the wreckage and protect its valuable "secrets."
Akira Kato, a professor of international politics and regional security at Tokyo's J.F. Oberlin University, said rivals China and Russia would have "a strong interest in collecting even a single screw of the state-of-the-art plane."
US defence contractor Lockheed Martin touts the hi-tech fighter as "virtually undetectable" and says it allows the US and its allies to dominate the skies with its "unmatched capability and unprecedented situational awareness."