The Orcinus blog provides some excellent background on the truly bizarre handling by C-SPAN of a scheduled appearance by Holocaust scholar Deborah Lipstadt, whom they proposed "balancing" with Holocaust denier David Irving. Click the link to read about the whole saga. Orcinus concludes:
Regrets about terminology notwithstanding, C-SPAN's approach to this subject makes clear that it has a great deal to learn about how extremists like Holocaust deniers operate. They count on the ignorance of those unfamiliar with their tactics to handle them "fairly" -- which is to say, to treat their lies as though they merely represent another viewpoint, and thereby spread their vicious falsifications into the mainstream. Sunday's broadcast was a classic case of this.