'US shot down MH370'

A former airline boss and writer claims the US downed Malaysia Airlines flight MH370 because the military feared it had been taken over by hackers and was about to be used in a 9/11-style attack.
Marc Dugain, who headed Proteus Airlines and is an established author, speculated that the Americans may have targeted the aircraft because they feared a September 11-style attack on a military base in the Indian Ocean.
In an article for French magazine Paris Match, he claimed that the Boeing 777 crashed nowhere near where international search teams have been combing the ocean for wreckage, but near an American military base in the British territory of Diego Garcia.
“It's an extremely powerful military base. It's surprising that the Americans have lost all trace of this aircraft. Without getting into conspiracy theories, it is a possibility that the Americans stopped this plane,” he told France Inter, according to a translation by The Local.
Dugain asked how “in our technological world” a 63 metre-long object could disappear without a trace, suggesting there must have been a deliberate effort to hide evidence.
The head of Emirates, the world's largest international airline, is among those who have echoed MrDugain's questions about the availability of evidence.
Sir Tim Clark revealed his doubts in October, saying his is electronic engineers believe that even with communication systems switched off, the plane would still be traceable, if lost.