Its really sad,

-Malaysian authorities lost track and became more and more speakless.
-The plane could be lost anywhere but not in the direction where it should fly to.
-The Indian ocean is large but there is a lot of vessel traffic but no reports till now.
-The 3 cases of faked passports is not really sorted out-a highjacking is still possible.
-Passengers history is still beeing checked
-No info about cargo(dangerous goods/explosiveor flammable materials )
etc