The Borg attempt to use them on Janeway and Tuvok in purchase to backlink their ideas to the hive intellect Chakotay afterwards utilizes just one to hyperlink his views with Seven of Nine to distract her. In "State of Flux" when proof suggests Seska is a surgically alterred Cardassian spy, Tuvok notes that Starfleet Secuirty has documented incidents of Cardassian cosmetic alteration for espionage.