This is the link to his comment: http://www.facebook.com/hone.harawira/posts/4238085744798
That now fails but it may have been taken down by someone other than Harawira, possibly even by Facebook.
UPDATE (Friday morning):
Harawira’s Facebook page is available again, minus the ‘house niggers’ comment and thread.
Quentin Todd
/ September 6, 2012Well good – I suspect Mr Speaker will be weighing up how to rebuke him.
Darryl
/ September 6, 2012He is not worth talking about. I consider him to be an arrogant individual, and shouldn’t be allowed in Parliament. What sort of example is he to young people. Get rid of him.