Operators of Japanese nuke plant won't rule out meltdown

The operators of Japan's earthquake-damaged Fukushima nuclear plant warned late Monday that they were fighting to prevent a meltdown, ABC News reported.
The fuel rods in the Number two reactor are again "fully exposed," after water levels dropped sharply, operator TEPCO said.
"We are not optimistic but I think we can inject water once we can reopen the valve and lower air pressure," the plant's operator stated.