 Pileggi had to endure long bouts of make @-@ up application . To create the principal illusion of monstrous veins , long black faux @-@ veins were glued onto his face , arms , and torso . Pileggi , who had had to endure little to no make @-@ up during the early seasons , noted that , " They did a beautiful job and [ the veins ] looked awesome , but man , I hated it ! I really don 't know how those guys on Star Trek or Babylon 5 can stand having that done to them every day . I just wouldn 't work if that 's what it took " . To show the nanobot infection progressing , special effects makeup supervisor John <unk> used two different make @-@ up sets . The two sets were then mixed together electronically in post @-@ production to give the effect of disease progression . The nanobots in the blood sample were designed on a computer and then <unk> with an animation program . Composer Mark Snow 's score for the episode was inspired by Daniel <unk> 's " big @-@ time feature @-@ like action " . 
