I'm all for it, we've discovered an ingenious way of not having to mine for oil and coal so much, and hell, if we could stop needing oil quite so much, that'd be a good thing!
*stops right there*
I do figure if space is infinite, surely we can load a rocket up with all the waste and just fire it away from the planet once every few years tho, sure its terribly irresponsible, but 1 ton of nuclear waste divided by infinity isnt much
Yes, I'm taking a simplistic view.
The main downside is the catastrophic results if terrorists target a plant, tho. There's only so much damage you can do to a mine, but a nuke power plant, that could be...bad.