FUD gets squashed again.
The robot spent over two hours performing almost a full circuit of the catwalk above the torus, ..
That states ABOVE the torus. IE - The upper torus areas. They did not survey the lower bottom section of the torus where gravity would have taken the corium. Personally will never ever again expect truth from organizations that flat out lie about meltdown for 2 months and delay for one year letting people know that 14 reactors lost external power that day.