@Renaldo Dubois,
I am not afraid of this as a campaign issue, and I am pretty solidly in the left column. As a matter of fact, as long as it is the Republicans who are seen as starting the fight, it is a very good fight for the Democrats. There will be a underlying theme of "look at how extreme the Republicans have become" that will be underlying the 2012 campaign. Because of the antics of King, and Bachmann and Sharon Angle, the Democrats don't even have to push this narrative (and they are wisely just letting it play out on its own).
It was pretty telling that the highlight from Peter King's little hearing was Keith Ellison's passionate story of the young Muslim hero who was accused because of his religion even as he was giving his life saving others on 9/11.