I think it's most likely being covered up, from what I've heard it's only military authorities gaining permission to initiate searches. We can only speculate.
My two cents is that it's a rapid decompression, or either terrorists set off some kind of explosive. A rapid decompression sounds more plausible though.
Point of no return is calculated, where your plane is given the amount of distance to return if anything goes wrong. Essentially how much fuel you can bring, and have enough to...
Vietnam Search Planes Find Twin Oil Slicks, Possibly Jet Engines
Vietnamese search aircraft may have spotted two oil slicks that could be from the jet engines of missing Malaysia Airlines flight...
The last known Latitude and Longitude coordinates are 006.97 and 103.63, this is from LOCAL radio sources around thailand, and are currently the most accurate.
