"If true and verified, the US is in deep poo, any proof of this will sink the US, actually coordinating and assisting the Terrorist group!"
Not really, cj. They will just deny all till the cows come home and blame the Russians.
Look at their denials over the sustained attack on that Medicins Sans Frontier hospital some time back.... they denied and denied.........and eventually conceded with excuses.
If they continue to deny, nothing can be thrown at them that will stick......unfortunately.
The war in Syria would be nearly over now if they had kept out of it and left the Russians do their work.