The Justice Department's decision to drop an already-won voter-intimidation case against members of the New Black Panther Party merits multiple, independent investigations. On Tuesday, Rep. Frank R. Wolf, Virginia Republican, officially asked Attorney General Eric H. Holder Jr. to refile the case. Mr. Holder should comply. So far, the Justice Department has stonewalled legitimate inquiry. It has yet to provide records sought by this newspaper back in May. It has yet to answer a July 22 letter from Mr. Wolf that asks 35 questions on 17 different subjects relating to the Black Panther case. Justice has claimed, falsely, that the...