Lovely pictures but no "molten" metal in any of them.
Molten metal doesn't hold together when picked up as in the first picture. In fact steel turns red at 900F, long before it melts at 2500F.
The next 2 pictures have been examined several times and are NOT metal but work lights being used by the workers. There is no molten metal in those pictures. Not even hot metal.
The only molten steel on the site was from iron workers cutting steel apart as they dug through the rubble. Any other claim is completely bogus. Even the statements by the firemen don't claim "molten metal" 1500 degrees isn't molten steel. "Red hot" metal isn't molten and we don't know if he is referring to metal that was just cut by a torch.