chunk: It turns out that Cain is an alias that had been assumed by Bourne—whose real name is not even "Bourne"—to hunt down Carlos; Cain took credit for kills as a way of challenging Carlos as part of a top-secret American plot. The plot is called Treadstone Seventy-One, and the truth is known only to eight men selected by covert agencies of the U.S. government; everyone else assumes Cain to be a real person. Due to Bourne's six-month silence (while he was recuperating) and the unauthorized diversion of millions of dollars from the Zurich account, the Treadstone men start to believe that Bourne has become a traitor. They are entirely convinced of his guilt when one of Carlos' operatives storms the building in which Treadstone is based, kills those inside, and then frames Bourne for the murders. The man now responsible for Treadstone attempts to lure Bourne into a meeting outside of Paris to kill him. Bourne escapes the trap, but does not succeed in proving his innocence.