My favorite and frankly the most plausible theory was posted here yesterday and it went like this:
Obama has been strangely silent about this incident, which means he knows what happened and where the aircraft is now. End theory.
I went ahead and summarized it for the general public as follows:
Nobody is saying anything, therefore they know everything!
If the pilot is proven to be gay, Obama will express his condolences and offer amnesty to those who are persecuted for the love that formerly dare not speaketh itsth nameth.