A longtime reader gently, or not so gently, puts me in my place ...

Don't be a lawyer! This is simple. The manual is not law, it is a manual. Prosecutors need to avoid being accused of abuse of grand jury process. Rove has testified so often to this grand jury they must be bored with him. There's no chance of abuse. So why is he testifying again? Because the case has gotten refined. Now it is about conspiracy. It is about the cover up not the crime. I assume. So he's come in to explain what he knew, when he knew it, how he didn't really cover up. Grand jurors will ask him q's. So will prosecutor. Record will be made. Then they can indict him if they want. Simple.

'nuff said.