Developments Tonight Point To News Today

Bad is that? >> reporter: oh, its very bad. when you have fuel rods exposed even spent fuel rods which is basically fuel rods that have been used to make energy and they are put in the pool, when they are exposed, they can melt down and then release the radioactive particles inside. thats what they are trying to avoid. the news from the head of the nrc that the spent fuel pool in reactor number 4 has no water is very, very bad news. now today the japanese government was going to try to send in m...