Yes, it sucks - natural disasters of this magnitude usually do. I'm not going to get hung up on it, but I'm not sure what you're talking about with the weapons-grade plutonium or what that has to do with anything. It's not like terrorists are going to storm the reactors and steal the fuel. As best as I can tell, the generators were swamped and destroyed by the tsunami and it seems like the Japanese should have had accounted for that one. That's on them for placing the plants where they did and some poor design decisions it seems, which is honestly surprising. Let's hope they do a better job at containing the aftermath.
Spent fuel rods can be stored safely. The advantage to storing them is that future reactor designs should be able to use this fuel, making nuclear energy even more efficient, with even less waste. Engineers are hard at work designing such reactors as we speak. I'm certainly not a "pro-nuclear at any cost" kind of guy, I just understand what an incredibly efficient, low-polluting form of energy it is. It is extremely environmentally friendly compared to coal, for instance. Nuclear energy does not do away with the need for solar or wind power either, just as solar and wind do not do away with the need for nuclear. I personally think that we need to get away from dependence on fossil fuels as soon as humanly possible, not that that is some profound statement. Nuclear is a huge piece of proven technology that will help us toward that goal.
Now, aside from Chernobyl, ask yourself what devastating nuclear accidents can you name since first controlled, self-sustaining nuclear chain reaction was started in 1942? Three Mile Island, despite all the press it got, does not count (if you do some research).
Xenu, that's so dumb. It was a !@#$ing EARTHQUAKE.