Just do a search for "louis theroux" on google video and you should see seperate one hour pieces of him with white supremacists and a different one with black supremacists (also with many other assorted groups).
Watching it made me very angry and sad. With the white supremacists he is with people such as Tom Metzger and April Gaede, they are shown with very little support and having to hide their views to get by in this stupid country.
On the other hand the black supremacists have tons of support everywhere they go, their own people love them. "Mainstream blacks" like Al Sharpton (also featured) won't even condemn them and actually agree with them on most issues and even they show black cops hugging one of the guys who is a black supremacist who says stuff about whites that is far worse than anything Tom Metzger says about blacks.
The sad thing after all that, this Louis Theroux guy doesn't actually get it. The black supremacists have so much power, and the stupid whites condemn their own instead of doing something about it. The future does not look good.