What do they mean by "long-lived waste"? Actinides of half-life 100-100,000 years or so. These have a compounding disadvantage in that they are alpha-emitters,

What do they mean by "long-lived waste"? Actinides of half-life 100-100,000 years or so. These have a compounding disadvantage in that they are alpha-emitters, hence disproportionately radiotoxic (e.g. by ingestion) compared to gamma- and beta- emitters like common fission products. Orders of magnitude disproportionate. The theoretical advantage is huge: (this graph is from a French nuclear research lab which appears to be temporarily offline) http://2.bp.blogspot.com/-m6Jl1KpnH3E/TiwB5Ppo85I/AAAAAAAAADE/wJvHAVmTN28/s1600/img18.gif http://2.bp.blogspot.com/-m6Jl1KpnH3E/TiwB5Ppo85I/AAAAAAAAAD...