The trick is picking a place to bury it; apparently all the US states with suitable locations for nuclear plants somehow lack suitable locations for waste storage, or else they wouldn't insist on shipping it to a state without any nuclear plants at all (oh but it was also the one state that got repeatedly nuked during tests, so I guess that makes it okay).
I remember an anti-nuclear talking about the Finnish project for long term storage.
He was depicting the project cost (4 billions) as ridicolously high and therefore unfeasible. Interesting that each plant (around 10 billions?) of Finland could use it for 100 years... seems like a no brainer to me!