CNN have a video showing parts of the plane before the highway.
I am really shocked about total lack of protection of important forensic evidence
left unattended by any security forces, readily available to looters and
souvenir seekers.
If there was any kind of mechanical failure and parts being lost before impact,
there is very little chance they will be ever found or evaluated.
It will be just few days before the e-bay will be over-flooded with pieces
of this aircraft for sale.
This is far beyond my understanding of "careful and thorough investigation".
