Are we prepared for the worst case scenario?

As Japan escalates the threat level at Fukushima nuclear plant to 7, it clearly indicates that a Chernobyl like disaster is not far from here. Anytime, Japan can face the worst ever nuclear catastrophe after what it had brushed with at Hiroshima and Nagasaki, during World War II. The world nuclear scientific community is helplessly looking for a way out like Mahabharat's Abhimanyu who though knew how to penetrate a seven-layer of armors ring, but had hardly an iota of knowledge as how to escape from such dangerous plot. Beyond the sarcasm of irony, I would like to ask those scientists who are basking under the glory of a complex scientific discovery of nuclear fission, have they ever considered the grave concerns of an imminent nuclear catastrophe which could be a serious cause of complete annihilation of mankind from the surface of earth? What have they learned till date from the sequence of nuclear disasters emerged from Kyshtyn, Windscale, Three Mile, and Chernobyl? Even after 25 years of the Chernobyl incident, the nuclear scientists are still not in a position to design alternative processes to absolutely reverse the nuclear reaction, other than the moderation, and still claim they have achieved sky high in nuclear technology. I would like to remind these scientific jingoists that they are still at half way in their journey towards excellence. What's the need of the hour for them is to first come forward and find out as many alternatives to counter an extremely acute situation haunting Fukushima. Fukushima is not a regional case, it's become the gravest global concern given the visible repercussions the entire mankind is waiting for. This is the high time that the political leadership of Japan should shun the cocoon of introversion and act proactively to ask for immediate help from the western countries to evade a potentially dangerous nuclear holocaust, which Japan wont be the only country to witness, but the entire Asia, Europe and surrounding regions would face the brunt. If the international scientific community still doesn't have a fitting solution to counter Fukushima's gravest problem, then it's better to stop marketing a half-baked scientific discovery, which has more dangerous implications than any amount of contribution to economic progress.