Jeralyn at TalkLeft is cautious about the prospects for the Rove investigation.

Before you get too excited, let's look at who's in charge of the investigation. It's Scott Bloch, a Bush appointee who's been under investigation himself. Bloch, a Kansas lawyer who served at the Justice Department's Task Force for Faith-based and Community Initiatives, was appointed by President Bush three years ago. Since he took the helm in 2004, staffers at the OSC, a small agency of about 100 lawyers and investigators, have accused him of a range of offenses, from having an anti-gay bias to criticizing employees for wearing short skirts and tight pants to work.

Not to throw cold water on this potentially interesting development in the political life of Karl Rove, but don't expect too much from this crowd. Jeralyn sums it up perfectly with a quote from David Corn:

It is a dizzying situation. The investigator investigating officials who oversee the agency that is investigating the investigator. Forget firewalls. This looks more like a basement flooded with backed-up sewage--with the water rising.

Update: Justin Rood at ABC's The Blotter has more: