Google Tampers with Rankings for Liberal Lean?

Compare the "filtered" (links specifically not excluded) rankings for Miserable Failure against the standard unfiltered rankings for the same search. Now Google, why would the ranks for the same search differ? Hmmmmmm?

Sounds like there's some covert political motives within Google.

Update 2/2: Just got an email from Aaron at the MFP this morning. He seems to think it's just a Google quirk and says that the rankings have been screwed up all week.