The Missing Malaysian Plane: Did It Choose To Fly Under Radar? ET Intervention?

It is relatively easy to "fly under radar."

http://en.wikipedia.org/wiki/Nap-of-the-earth

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Just to "cover bases"...

Any civilization capable of reaching earth from a distant planet would be able to pluck a plane from the sky.

Such extraterrestrial intervention is a vanishingly remote possibility but not inconceivable.

For the time being, the prospect adds to the Magnum Mysterium.