They are radical groups who identify with the violent jihad of Islamacist terror organizations like al-Qaeda, Hizbollah, Islamic Jihad and Hamas. And they have the support of a radical culture that regards America as the Great Satan, and Muslims and Arabs as the people whom America oppresses.

Horowitz, David (April 08, 2003). ""As a former 'Radical,' I see the threat of Militant Islam on our Campuses,"". jewishworldreview.com. Retrieved on 2010-01-05.