I'm generally pro-nuclear, but a geoligist friend of mine who worked at Yucca mountain (where the government wants to sequester waste) said there was no way they could guarantee long term safety.
I don't know what the exact risk is, but when you're working on ten-thousand-year timescales it's worth being a little cautious.
The solution to nuclear waste is burning it up in breeder reactors. Who don't have to store the stuff for aeons if we risk producing weapons grade material in between.
I don't know what the exact risk is, but when you're working on ten-thousand-year timescales it's worth being a little cautious.