 In any case, consistent with this account, an agent might use another through using the other’s rational, emotional, or physical capacities. A tourist might ask someone for directions, using the other’s knowledge to get to his destination; a politician might use his constituents’ fear of crime to gain their support for more spending on law enforcement; a doctor might use a vein from a patient’s leg to repair her heart. One important question left unanswered by this and other accounts of treating another as a means is one of scope. For example, does an agent use another if he uses biospecimens (e.g., cells) or information (e.g., concerning social media activity) derived from the other? If so, then the scope of a constraint on treating others merely as means would extend to the practices of biobanks and technology companies.