"In its reports, Novaya Gazeta suggests the Ryazan bomb was real, and furthermore might indicate that Russian security services -- not Chechen terrorists -- were behind the apartment block blasts."
And this from the globalist, liberal FAS, hardly a den of tin foil conspiracy!..... BTW - this was simply the random first thing that popped up on my search of "fsb+moscow+apartment+blasts". There are scads of additional references, I am only scratching the surface here.