Nut picking is a variety of straw man fallacy where one selects the looniest advocates of a position as representative of the best or the majority of the opposition.  Fear of nut picking often leads to iron manning–purposely ignoring the degraded state of someone's argument so as not to be guilty of nut picking.  Fear of nut picking also often forces people to look the other way, for fear of playing the race card.  The race card is what Bob Somerby accuses the left of doing exclusively and obsessively.  Somerby's Daily Howler is one of the inspirations for the iron man.  Here was the original idea.

With those caveats, look with horror on the reactions of many Fox News commenters on the death of Whitney Houston.  Here is an example:

A tragedy is when someones passes away from a terminal disease or something else that no one saw coming. Whitney is just an inferior lo w life ni gg er that needed to go,no tragedy,no loss.

For more look here.

via Little Green Footballs, Leiter.