Karl Rove. Senior White House advisor Karl Rove figures prominently in the government's indictment. He allegedly spoke both to Mr. Novak and Mr. Libby about Ms. Wilson's affiliation with the CIA. Accordingly, the government's statement that it does not presently intend to call Mr. Rove does not diminish his importance in this case. The defense is likely to call Mr. Rove to provide testimony regarding Mr. Libby's conversations with Mr. Rove concerning reporters' inquiries about Ms. Wilson, as expressly discussed in the indictment. (Indictment, Count One, at ¶ 21.) Documents from Mr. Rove's files about the subjects outlined in the indictment are discoverable pursuant to Rule 16 because without them the defense cannot effectively prepare for Mr. Rove's examination. As discussed above, Rule 16 compels disclosure of such documents even if Mr. Rove remains a subject of a continuing grand jury investigation.