Bit off topic this, except as part of a Rullsenberg Rants mode, but I thought the discussion about "Political Bias in Academe" currently running through H-Net's H-Amstdy (American Studies) discussion log may interest some of this blog's readers. Follow the messages through the PBiA message headings.
Debates about objectivity and subjectivity in academic discussions are probably as old as academia itself. At least we are free to debate these issues (generally speaking: notwithstanding debates around obtaining tenure - a.ka. any kind of permanent/longer-term full-time post - and the increasing commodification of education).