It may take some time before the circumstances regarding the 'disappearance' of MH370 are fully known. What I am having a little difficulty getting my head around (as a pilot, albeit with less than 1,000 hours in his log book) is the silence regarding the reported two 'oil' slicks.
To my mind it should take less than a couple of hours to determine whether a sample from the oil stick matched the fuel the plane was carrying. It's really no big deal and if it does then the search area can be narrowed down.
But being an 'armchair' analyst is a very easy thing. This is a tragedy and the authorities will throw everything they have to determine what happened early yesterday morning.