This is from a post that appeared elsewhere on this Forum some days ago ( Would sspx.org print an article like this?):
.....Williamson's latest remarks on the Society conflict are searingly logical. His words are like a surgical knife, cutting through all the b.s. emanating--or flowing, as b.s. might do in the metaphor--from Society moderates. Two facts have been covered up as much as possible by the semi-trads. .......... The first is that Bishop Fellay publicly asserted on several occasions in the past that Rome would never succeed in dividing the Society bishops, since those bishops would always negotiate as a team. Then he entered into secret negotiations and cut out the other three bishops. This has resulted in the very division he swore to avoid. Secondly, +Fellay said on several occasions that there would be no practical agreement before there was general agreement on the main doctrinal issues. The two parties sat for two years and failed to resolve even one of those issues. Then +Fellay attempted to reach an agreement on the "principles and criteria" of doctrinal interpretation--which is not the same thing as agreement on doctrine itself--and he tried to consider a canonical structure, one that would have harmed the S.S.P.X's mission very much, the hated personal prelature. Even to consider the personal prelature structure, in which the lay supporters of the Society become subjects of the local bishops and those local bishops gain a veto over the foundation of future Society apostolates--makes him a traitor to Archbishop Lefebvre.
So Bishop Fellay has turned out to be a liar and a deceiver and a traitor. Either that or circustances changed his commitments but, in that case, he OWES us an explanation. None has been forthcoming.......