Actually, there is a lot of incendiary hate out there – here, for example. The voiceover is by U.S. citizen (and spiritual mentor, most recently, to Major Hasan) Ayman al-Awlaki. He is explaining the rationale for killing identified individuals, including the creators of South Park.
Mr. al-Awlaki says things like, “Harming Allah and his messenger is a reason to encourage Muslims to kill whoever does that.”
Maybe he’d get a worse press if he were to stop pussyfooting around and explicitly incite violence by saying something openly hateful like “I’m becoming very concerned about federal spending.”