The passport news is interesting.
If it were an act of terrorism, why blow up or hijack the aircraft in the middle of the ocean? Seems you would want to there to be a lot of people see the airplane explode or have them witness some sort of devastating 9/11 type attack in China. Unless they managed to hijack the aircraft and it crashed during a struggle to regain control
I can tell you it is damned hard to get into the flight deck of an airliner without just being let in freely. And i dont know how security is over there but in the US you'd have a hard time smuggling curry spice in your bag or shoes etc let alone an explosive device.
Why no terrorist groups claiming responsibility? they usually claim responsibility for every little thing whether they are responsible for it or not.
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