A Reasonable Explanation

When are conspiracy theories branded as such, and who says it sounds more reasonable to say something like;

"The plane is missing. We acknowledge that planes cannot disappear from radar. We acknowledge that planes simply do not disintegrate into smithereens (in much the same way skyscrapers don't?). We acknowledge the black box transmission has been lost, even though this is virtually impossible. We acknowledge most parts of a crashed plane would float."

Yet this plane has gone missing. No radar. No black box signal. No debris.

But we're sure there is a perfectly reasonable explanation.