Amory Lovins describes the myriad of drawbacks to three reactor designs frequently touted by nuclear advocates and others hoping for some type of nuclear holy grail—i.e. a safe, affordable, reduced-waste atomic reactor. Lovins looks at Integrated Fast Reactors, Thorium reactors, and “small” modular reactors. Nope, the search for the grail is still on…..Reprinted from Nuclear Monitor.