Farris just watched him a moment. The fear in her expression seemed to mix with sadness, maybe regret "Not even Fuchi datafiles are immutable," she said. "The infiltrator program anticipated the possibility that certain relevant datafiles such as personnel files might be surreptitiously accessed. These files were altered. Datasets were exchanged. Michael Travis' retinal and DNA patterns were inserted into Ansell's files. The real Ansell Surikov, his codes and patterns, are now part of the datafiles that originally belonged to Michael Travis."