in a closed hallway with the man carrying the plague. Skinner pulls some strings and arranges for them to be interred at Arlington National Cemetery, as a tribute to their brave deeds. Syndicate characters Marita Covarrubias Marita Covarrubias is introduced as an informant to Mulder after the death of his former source, X. X scrawls the letters "S.R.S.G." in his own blood as he dies, leading Mulder to the Special Representative to the Secretary-General of the United Nations. However, it is later revealed that Covarrubias is working for the Smoking Man and the Syndicate. The Syndicate later discovers that Covarrubias has betrayed them and is providing information to Mulder. As a result, Syndicate scientists infect her with the black oil virus, so as to test a vaccine they have been working to create. A cured Covarrubias later makes contact with Krycek at the behest of The Smoking Man, who wishes to resume the work of the now-eradicated Syndicate. However, Covarrubias and Krycek betray the Smoking Man and leave him for dead. In the series finale "The Truth," Skinner seeks Covarrubias as a witness in Mulder's trial for murder. She is called upon to testify, and she speaks about her involvement with the Syndicate. However, when she is pressed for further information about the continuation of the conspiracy, she clams up, and at Mulder's request she is dismissed from the stand, for fear that if she divulges certain knowledge, she will be killed. The character of Marita Covarrubias was portrayed by Laurie Holden in all her appearances. When auditioning for the role, Holden was not allowed access to an episode script, instead simply being told that her character worked for the United Nations and had an air of "intelligent seriousness". Writer Frank Spotnitz has described Covarrubias as "young, attractive, vital [and] dangerous" compared to the other characters working for the Syndicate. Holden has compared the character to Mata Hari, adding that "you can't really read what she's saying or what her intentions are". Robert Shearman and Lars Pearson, in their book Wanting to Believe: A Critical Guide to The X-Files, Millennium & The Lone Gunmen, felt that the character was "used so perfunctorily since her introduction" that her appearances added little to the episodes she featured in, describing her as a "bad parody" of the earlier characters Deep Throat and X. Deep Throat Deep Throat is the first of Mulder's informants,