As noted (partially) above, the article also says
"While an FBI spokeswoman would neither confirm nor deny the presence of any name on the terrorist watch list — another trigger for added security response — one law enforcement source said it was "extremely unlikely" Oden was on the list of potential terrorists because her name is unknown to the FBI."
Perhaps the FBI just doesn't care about the Greens or has important things to worry about right now. Sorry, green Party.