The article pushes thorium as the fuel of the future after the author (Sam Knight) met with Seth Grae in Moscow; the founder of a new company Thorium Power. There many flaws in the article e.g. thorium is not a fuel per se but a breeder material for U233. It forgets earlier studies, such as the HTGR, which was abandoned (although efforts to revive it are current). What I particularly dislike is the statement that new proposals to build new reactors are based on "old" technology i.e. PWRs, BWRs and HWRs. These have been improved dramatically, especially with respect to lowering down times,raising power outputs and extending lifetimes to 60 years. Perhaps in 50 years time we may need to consider thorium as an extra resource as uranium sources dwindle. Brian Frost (Argonne National Lab. retiree). P.S. see Sustainablenuclear.org for more information.