"Think of the potential consequences," she goes on. "As you stated in your report, Mr. Larson, the virus that infected the Cutters is closely related to the VITAS 3 retrovirus. Not VITAS 4 ... not yet. I’m no viral geneticist, but it seems to me the transition between non-infective and infective—between targeted bioweapon and lethal pandemic—isn’t a particularly big one.