journalists to be sure of their sources. in this case i think we're seeing frequently that sources can be very flaky, particularly if they are malaysian. i can site the pilots began very early on by careful and deliberate release of information, no credence at all. people went chasing after it. i think that's dissipated to some extent. it just underlines very often on this story, speculation is the enemy of truth, yet we are forced to speculate. i'm very self-aware. a certain theory. might become too obsessed with it, too convinced on the basis of what i'm seeing. it's probably the right one. that would be wrong to do. what i've been trying to do is look at each and balance them. take boeing, for example, they have been very silent, tight-lipped. they say absolute justification