He isn't alone, though I wish there were many more as outspoken. He is very anti-wahhabi, and The Center for Islamic Pluralism has a "Wahhabi Watch" on it's website which lists the American muslim organizations that it exposes.....and yes, they go after CAIR.
http://www.islamicpluralism.org/wahhabiwatch.htm
Now that's pretty strong, right there. Encouraging.