Perhaps Juan Cole oversimplified just a bit, but the thrust of his case sounds on target to me.
1. White terrorists are called “gunmen.” What does that even mean? A person with a gun? Wouldn’t that be, like, everyone in the US? Other terrorists are called, like, “terrorists.”
2. White terrorists are “troubled loners.” Other terrorists are always suspected of being part of a global plot, even when they are obviously troubled loners.
3. Doing a study on the danger of white terrorists at the Department of Homeland Security will get you sidelined by angry white Congressmen. Doing studies on other kinds of terrorists is a guaranteed promotion.