Hypothetical situation, in a world where media leviathans were to contradict the "official" story relative to one another, the blog poster describes:

"NBC: “After a violent gun battle on the streets of a great American city, during which a suspect in the Boston massacre was killed, an FBI source stunningly revealed they had ended the life of a cooperating informant. He put it this way: ‘The Tsarnaev brothers were recruited by a secret Bureau unit to plant the bombs. The plan was to blame the bombing on so-called patriots, but that fell through, so the Bureau exercised their only option. They put their informants front and center and blamed the whole thing on them…”"