You have no idea about Sellafield. 17bn pound sterling is for many purposes, chief amongst them is RUNNING the plant. Decommissioning 4 cooling tower is a small side job. You always decommission old units and erect new ones if old ones are as old as 1960's vintage.
Just do not start blabering if you know nothing. Half baked knowledge is dangrous to all.
Leave such matters to Nuclear Experts like AEC Scientists.
India is persuing FBR project, where as it is almost dead in Japan & France. USA never took interest in it.
Even than India is persuing it, Our Nuclear scientist Know it why they are spending crores of Rs in it and want to scale up to 500 MW FBR units. Here we trust them and never questioned them.
But why are you questioning Anil Kakodkar and his team, which says we need the accord.
Do you think you are better expert than AEC Chairman.