Would Malaysian government officials be willing to admit that (a) KLIA security had been compromised (allowing potential weapons of terror on board) and/or (b) the plane had been diverted somewhere (and potentially crashed there or en route)?
The repeated suggestions of a "turn" on radar, a sudden drop, a supposed intent to return towards land, and now the business of searching the Strait of Malacca are leading me to think Malay authorities have a different idea of where the plane was headed than we have been led to believe.
Either that, or they are drawing at straws as much as we are.