Just because we began running circles again can I summarize what we concluded so far?
Spare me of demand for how I get to this, my English is too weak for it.
1. There left only two probable reasons of plane downing
1.1. Some internal structure breakage
1.2. Some explosive device planted into passenger or cargo compartment (thus include lavatories and food trays)
We can't discuss 1.1. until more evidence found/leaked/published
Concerning 1.2. we can't discuss the way device was brought on on board and planted until more info leaked (it it will at all until trial)...