* CrowningMusicOfAwesome. The main theme.
* HarsherInHindsight: The episode "Pinball Wizard" featured an aircraft being crashed into the ThePentagon during an attack, complete with faux footage of [[http://www.youtube.com/watch?v=GOH1sIfCp4w#t=465s the building with one side blown in]], and faux news coverage of the wreckage and mass casualties. It was filmed in 1999.
** There was also an episode where a bunch of terrorists rammed a helicopter full of explosives into the Statue of Liberty.
** The pilot had the project being activated because Chechen terrorists kamikazed the White House, killing the president and vice president. This was aired two years before 9/11.
* ReplacementScrappy: the character they brought in to replace [[spoiler:Ballard]] early in the third season.