I think Luger_carbine is thinking along the same lines I was reading Eban's piece.
In related news, 4 of the 31 Democrats who signed the letter calling for Holder to turn over the Fast and Furious information have indicated they will vote for the contempt resolution:
Interestingly enough, Rep. Collin Peterson (MN-D) is voting for the measure even though his seat is considered safe this election. Most of the other Dems voting in support are in borderline districts where the constituency is upset. Nice to see someone value integrity above party loyalty.