Reading all of the various reports, I can't help but get the feeling that the Malaysian authorities are covering something up. Is it their air defence set-up's incompetence in failing to observe the unidentified trace heading towards their airspace and crossing the peninsula? Or is it that they did indeed see it but that a panicking command structure had sudden visions of their own 9/11 and the Petronas Towers, and took action that, given the consequences, they would rather not now be made public?