I don't speak for AECL, but just for myself. It would seem to me that this was exactly the problem AECL had: how much money do we keep pouring in when we're not sure at this point, having seen the latest set of results, that we know what all the causes are? I guess that is indeed the problem that was faced by AECL's board of directors.
On June 10th, 2008. See this statement in context.