User blog comment:TheShadowAssassin/Malaysian PM: "Plane was lost; crashed in south Indian Ocean"/@comment-24653914-20140325003933/@comment-5381241-20140325142355

This very could be one of those incidents, but it is also plausible that the plane could have lost its cabin pressure, causing everybody on board to die of hypoxia. There was a similar incident like this in 1999, when a learjet was flying from Florida to Texas, and when the pilots were told to switch their radio frequencies, there was no answer. After the Air Force finally got pilots up with the plane to see what was going on, there had appeared to be a dense condensation over the windshield and no movement within the cockpit. blatantly suggesting that the cabin had lost all air pressure.

The reason as to why the pilots on flight MH370 turned off their transponder and ARCS makes no sense, though. The ARCS, by the way, is a device that sends data about the plane's vital aspects every 30 minutes to ground responders. The transponders receive and transmit the plane's location. Really though, to suggest that there was something weird with disabling the ARCS isn't really irrelevant. As I said, the ARCS only gives data of the plane's vital aspects, which if this were a highjacking of some sort, this wouldn't be necessary to turn off.

The transponders on the other hand, those can render the plane untraceable.