Japan's Nuclear Disaster at Chernobyl Level 7

From bad to worse. The Japanese government announced its nuclear disaster is now at Level 7 on the International Nuclear Event Scale - the same level as the Chernobyl nuclear disaster in 1986.

And while the Japanese government reassures citizens the radioactive material release is just 10 percent that of Chernobyl, a nuclear engineer tells CNN he's not so sure.

"Chernobyl was covered by this point in time, and here this accident is just continuing on. There was, what this means is there have been ten thousand trillion disintegrations every second have been released already from the plant. So this is based on what has already happened, and really it can get worse as you look forward."